A+Click Math Challenge; international online competition <http://www.aplusclick.com>
Archimedean Challenge — Seasonal (four times a year), 4-months-long, for 13 - 18-year-olds (individuals or groups), participants research a famous, long-standing, unsolved problem in mathematics. <http://euclidlab.org/programs/archimedean-challenge/>
Association of Computational and Mathematical Modeling (AoCMM) Competition; student from any countries under the age of 20 can compete in teams of up to four individuals. The team will be given 14 days to research on two real world problems and will present its solution in the form of a research paper. Scholarships are awarded to top teams. 2016 competition is from October 4 to 18. <http://aocmm.org/>
Caribou Contests — worldwide online contests, provided in English and French, that are held six times throughout the school year for each of the grade levels 3/4, 5/6, 7/8, 9/10 and 11/12. These contests are suitable for all students, not only those who are strong in mathematics, and uniquely contain some interactive questions. Results are available on the evening of the contest day. Video solutions to selected questions and all previous contests can be tried online for free. <https://www.cariboutests.com/>
Championnat International de Jeux Mathématiques et Logiques — for all ages, mainly for French-speaking countries, but participation is not limited by language. <http://ffjm.cijm.org>
China Girls Mathematical Olympiad (CGMO) — Olympiad held annually in different cities in China for teams of girls representing regions within China and a number of other countries as well.
European Mathematical Cup - Europe <http://emc.mnm.hr/>
Grand Sentinel - International Mathematical Tournament with by far the biggest prizes - Winners get $175,000. <http://grandsentinel.com>
Interdisciplinary Contest in Modeling (ICM) — team contest for undergraduates <http://www.comap.com/undergraduate/contests/icm/>
International Mathematical Modeling Challenge — www.immchallenge.org
International Mathematical Olympiad (IMO) — The oldest international Olympiad, occurring annually since 1959.
International Mathematics Competition for University Students (IMC) — international competition for undergraduate students. <http://www.imc-math.org.uk/>
International Mathematics Contest (Elementary International Mathematics Competition [EMIC] for elementary students and Invitational World Youth Mathematics Intercity Competition [IWYMIC] for secondary students). <http://www.imc-official.org>
International Mathematics Contest - Singapore (IMC - Singapore) <http://www.imcunion.org/>
International Scientific Olympiad on Mathematics for Undergraduate University Students (ISOM) — competition for undergraduates held annually in Iran. <http://olympiad.sanjesh.org/en/index.asp>
International Schools Mathematics Teachers Foundation (ISMTF) — annual competition for high school students attending an international school. Held every year in a different school. <http://www.ismtf.org/>
International Singapore Maths Competition (ISMC) <http://www.ismc.sg/>
International Tournament of Young Mathematicians (ITYM) <http://www.itym.org/>
International Young Master -MATH BEE & SCIENCE BEE <http://www.internationalyoungmaster.com/home.html>
Mathematical Contest in Modeling (MCM) — team contest for undergraduates <http://www.comap.com/undergraduate/contests/mcm/>
Mathematical Kangaroo — worldwide competition. <http://www.aksf.org><http://www.mathkang.org>
Math exercises for kids — Daily worldwide competition <http://www.math-exercises-for-kids.com/competition/math-world-cup.php>
Mathorcup Global Mathematical Modeling Challenge (MGMMC) — team contest for undergraduates <http://www.mathor.com/>
Mental Calculation World Cup — a contest for the best mental calculators
MOPTA Optimization Modelling Competition for university students, held annually. <http://mopta.ie.lehigh.edu>
'Online Math' Event of the annual technical festival Shaastra, Indian Institute of Technology Madras (IITM), Chennai, India. (http://www.shaastra.org/2009/events/online_events/online_math, http://www.shaastra.org/2010/main/events/online_events/online_math and http://www.shaastra.org/2011/main/events/OnlineMathChamp/)
International Internet Mathematical Olympiad for Students organized by Ariel University Center of Samaria (http://www.i-olymp.net/ and http://www.ariel.ac.il/cs/projects/dom/itpm/)
NCUMC (North Countries Universities Mathematical Competition), organized in Saint Petersburg
Open International Project <http://e-competition.eu> - Mathematics Online Competition "Eruditus" for Students <http://www.eruditus.lt/>
Open Mathematical Olympiad of the Belarusian-Russian University (International Student Olympiad MathOpen Belarus, Mogilev, Belarus) (http://mathopen.bru.by/)
Perennial Math-This is a four-month online competition for grade 3-12 with 2 different seasons to choose from (Nov-Feb) or (Jan-April). Individual student and team memberships are available. Site also offers online Virtual Tournaments for students to attend through webcam, and Onsite Tournaments at Colleges and Schools. <http://perennialmath.com/tournaments>
Primary Mathematics World Contest (PMWC) — worldwide competition.
Purple Comet! Math Meet — annual on-line team contest for high school & middle school <http://purplecomet.org/>
Rocket City Math League (RCML) — This is a mathematics competition run by students at Virgil I. Grissom High School with levels ranging from Explorer (Pre-Algebra) to Discovery (Comprehensive). <http://www.rocketcitymath.org>
Romanian Master of Mathematics and Sciences — This is an olympiad for the selections of the 20 top countries in the last IMO. The level of the competition is IMO-like. The format had been 4 problems in 5 hours in 2009, in 2010 it was changed to 3 problems in 4 hours, two days format.<http://www.rmm.lbi.ro/>
Singapore and Asian Schools Math Olympiad (SASMO), a worldwide math competition based on Singapore Math combined with Math Olympiad, Puzzles and Math Games for Grades 2 to 10, http://mathsolympiads.org
Singapore International Mathematics Olympiad Challenge (SIMOC), a worldwide Invitational math and puzzles competition open only to award winners from SASMO, http://simoc.sg/
South Eastern European Mathematical Olympiad for First and Second Year University Students with International Participation (SEEMOUS) — competition for the Balkan region; however, participation is international. The first Olympiad was held in Agros, Cyprus, 7–12 March 2007, the second in Athens, Greece, 5–10 March 2008, the third in Agros, Cyprus, 4–9 March 2009, the fourth in Plovdiv, Bulgaria, 8–13 March 2010, the fifth in Bucharest, Romania, 2–6 March 2011, the sixth in Blagoevgrad, Bulgaria, 6–11 March 2012, the seventh in Athens, Greece, 21–25 March 2013, the eighth in Iași, Romania, 5–9 March 2014, the ninth is to be held in Ohrid, Republic of Macedonia, 3–8 March 2015. (http://www.massee-org.eu/index.php/mathematical/seemous, http://seemous2010.fmi-plovdiv.org, http://fmi.unibuc.ro/seemous2011/, http://seemous2012.swu.bg/seemous/, http://math.etti.tuiasi.ro/seemous/, http://www.seemous2015.smm.com.mk)
Tournament of the Towns — worldwide competition.
Vojtěch Jarník International Mathematical Competition (VJIMC) — international competition for undergraduate students. The Competition is held at the University of Ostrava every year in March or April. <http://vjimc.osu.cz/>
World Mathematics Challenge (WMC) — an international competition for high school students.
World Maths Day (WMD); uniting the world in numbers, open to all school aged children globally <http://www.worldmathsday.com>
International Mathematics Wizard Challenge, IMWiC
AITMO (Asian Inter-city Teenagers Mathematics Olympiad) — for junior secondary students around the Eastern Asian region
APMC (Austrian-Polish Mathematics Competition) (last held in 2006)
APMCM (Asian Pacific Mathematics Contest in Modeling) — Pacific rim<http://www.mathor.com>
APMO (Asian Pacific Mathematics Olympiad) — Pacific rim
APMOPS (Singapore - Asia Pacific Mathematical Olympiad for Primary Schools) — open to Primary Students under 12 in Australia, Brunei, China (Shanghai, Hainan, Xiamen, Wenchou), Hong Kong, Indonesia (Jakarta), Malaysia: (Johor, Kuala Lumpur, Selangor- Petaling Jaya), Penang, Perak- Ipoh, Kedah), New Zealand, Singapore, South Korea, Taiwan, Philippines, and India. <http://www.hci.sg/aphelion/apmops/index.htm>
Balkan Mathematical Olympiad — for students from 15.5 years old from Balkan area
Junior Balkan Mathematical Olympiad — for students under 15.5 years old from Balkan area
Baltic Way — Baltic area
BxMO (Benelux Mathematical Olympiad) — since 2009
Czech-Polish-Slovak Match. Established in 1995 under the name of Czech-Slovak Match Poland joined in 2001. It is held in June in the IMO format.
Donova Mathematical Olympiad. Olympiad for all countries through which the Danube passes. Held since 2005.
EGMO (European Girls' Mathematical Olympiad) — since April 2012: <http://www.egmo2012.org.uk>
Hungary-Israel Mathematical Competition. It was established in 1990. Only these 2 countries participate and one is the host. It is held in spring. It consist of individual and team contests.
ICAS-Mathematics (http://www.eaa.unsw.edu.au/about_icas/mathematics, formerly Australasian Schools Mathematics Assessment)
Mathematical Náboj <http://math.naboj.org> - Team mathematical competition taking place at several center-European cities (Prague, Opava, Bratislava, Košice, Passau, Linz, Kraków, Warszawa, Wrocław, Gdynia, Budapest, Veszprém).
MEMO (Middle European Mathematical Olympiad) — Germany, Croatia, Austria, Poland, Switzerland, Slovakia, Slovenia, Czech Republic, Hungary, Lithuania
Mediterranean Mathematics Competition. Olympiad for countries in the Mediterranean zone.
NEAMC (North East Asian Mathematics Competition) — North-East Asia <http://www.neamc.asia>
NMC (Nordic Mathematical Contest) — the five Nordic countries
Nordic university-level mathematics team-competition — For Nordic undergraduates <http://cc.oulu.fi/~phasto/competition/>
OIM (Olimpíadas Iberoamericanas de Matemática) — Spain, Portugal and Latin America <http://www.oei.es/oim/index.html>
Olimpiada de mayo (competitions for selecting the participants of Olimpiada Matematica Rioplatence) <http://www.oma.org.ar/internacional/may.htm>
Olimpiada Iberoamericana de Matematicas para Estudiantes Universitarios (similar to Olimpiada Iberoamericana de Matematica, but for college students)
Olimpiada Matematica Rioplatense (similar to Olimpiada Iberoamericana de Matematica, but it is every year in Argentina and participants are organized in levels depending on the age) <http://www.oma.org.ar/internacional/omr.htm>
OIM (Olimpíada Interestadual de Matemática) <http://www.oim-matematica.blogspot.com.br>
Olimpiada Matematica de Centroamérica y del Caribe — Central America and the Caribbean
Olimpiada Matematica de Paises del Cono Sur — 8 countries from South America
Open International Project <http://e-competition.eu> - Mathematics Online Competition "Eruditus" for Students <http://www.eruditus.lt/>
PAMO (Pan African Mathematics Olympiad)
SEAMO (SEAMEO Mathematics Olympiad) — South-East Asia
SEAMC (South East Asian Mathematics Competition) — South-East Asia <http://www.seamc.asia>
Tuymaada Yakut Olympiad. Multidisciplinary competition for students from Romania, Kazakhstan, Moldova, Tartastan, Saint Petersburg, Irkutsk, Vladivostok, Novokuznetsk, Perm and other Russian cities. It is held in July; few students obtain prizes.
William Lowell Putnam Mathematical Competition — USA and Canada <http://www.maa.org/awards/putnam.html>
ZIMO (Zhautykov International Mathematical Olympiad) — for teams from specialized schools in post-soviet region <http://izho2008.fiz-mat.kz/>
Online Math Competitions are competitions that are completely free of charge and accessible to everyone on the internet
AoCMM Competition (Association of Computational and Mathematical Modeling, http://aocmm.org/)
NIMO (National Internet Math Olympiad, http://internetolympiad.org/)
OMO (Online Math Open, http://internetolympiad.org/)
JOMO (Junior Online Math Olympiad, http://jomo.url.ph)
Interstellar Math Madness Competition (http://in-ter-stel-lar.com/)
Grand Sentinel - VIP Mathematical Tournament with elements from Natural Sciences - by far the biggest prizes (Winners get $175,000) (http://grandsentinel.com/)
Mathlathon (Organised by: Math Buddy Online)- Online Math Olympiad (http://www.mathbuddyonline.com/mathlathon/index/)
a) Olimpiada Kombetare e Matematikes b) Olimpiada Mbarekombetare e Revistes Plus
OMA (Olimpíada Matemática Argentina, http://www.oma.org.ar)
Olimpiada Matemática Ñandu
Certamen "El número de oro"
Torneo de Computación y Matemática (http://www.oma.org.ar/nacional/cym)
APSMO (Australasian Problem Solving Mathematical Olympiads, http://www.apsmo.info)
AMC (Australian Maths Challenge, http://www.mathletics.com.au/challenge)
AMC (Australian Mathematics Competition, http://www.amt.edu.au)
AMO (Australian Mathematical Olympiad, http://www.amt.edu.au)
AIMO (Australian Intermediate Mathematical Olympiad)
AMOC Senior Contest
UQ/QAMT Problem Solving Competition
MTQ (Maths Talent Quest, Victoria) http://www.mav.vic.edu.au/activities/student-activities/maths-talent-quest/maths-talent-quest.html
UNSW School Mathematics Competition <http://www.maths.unsw.edu.au/highschool/unsw/highcomps.html>
NMTQ (National Maths Talent Quest)
HSFOL (Have Sum Fun Online) - an online team competition from the Mathematics Association of West Australia <http://www.havesumfunonline.com/>
ÖMO (Österreichische Mathematik Olympiade) <http://www.oemo.at>
Känguru der Mathematik (for students age 6 to 22) http://www.kaenguru.at/
Bangladesh Mathematical Olympiad(Jatio Gonit Utshob) <http://www.matholympiad.org.bd>
Bangladesh Online Mathematical Competition <http://www.bdomc.cf>
French-speaking students from Belgium and Luxembourg can compete in the OMB (Olympiade Mathématique Belge) consisting of three categories:
Mini (grades 7 and 8)
Midi (grades 9 and 10)
Maxi (grades 11 and 12)
Dutch-speaking students can compete in the VWO (Vlaamse Wiskunde Olympiade) and in Kangoeroe, with six categories:
Kangoeroe: Springmuis (grades 4 and 5)
Kangoeroe: Koala (grades 6 and 7)
Kangoeroe: Wallabie or Wallaroe (grades 7 and 8)
Junior Wiskunde Olympiade (grades 9 and 10)
Vlaamse Wiskunde Olympiade (grades 11 and 12)
University competitions include:
PUMA (Pure Mathematische Olympiade / Pure Mathematical Olympiad, organized at Ghent University, http://prime.ugent.be/activiteiten/puma/)
COMA (Computational Mathematics, organized at Ghent University, http://prime.ugent.be/activiteiten/coma/)
WWO (Wina Wiskunde Olympiade, organized at Katholieke Universiteit Leuven)
Bosnia and Herzegovina
XV matematička olimpijada Bosne i Hercegovine, Mostar, 15. maj 2010.
There are two national competitions in Brazil: the oldest one, OBM, dates back to 1979 and is open to all students from fifth grade to university.
The other one, OBMEP, was created in 2005 and is open to public school students from fifth grade to high school. In 2008 it counted with the participation of 18,3 million students on its first round.
Olimpíada Brasileira de Matemática (OBM), (http://www.obm.org.br/)
Olimpíada Brasileira de Matemática das Escolas Públicas (OBMEP), (http://www.obmep.org.br/)
There are also many regional competitions, usually open to all students of a given state.
Olimpíada Paulista de Matemática (OPM), (http://www.opm.mat.br/)
Olimpíada de Matemática do Estado do Rio de Janeiro (OMERJ), (http://www.omerj.com.br/)
Olimpíada Mineira da Matemática (OMM), (http://www.mat.ufmg.br/olimpiada/)
Olimpíada de Matemática do Grande ABC (OMABC), (http://portal.metodista.br/omabc)
Chernorizec Hrabar Math Tournament (since 1992) http://www.math.bas.bg/ch/
Singapore and Asian Schools Math Olympiad (SASMO Bulgaria) http://mathsolympiads.org/bulgaria/
Bulgarian Competition in Mathematics and Informatics <http://www.math.bas.bg/bcmi/>
National Student Olympiad in Mathematics, with international participation (2012 - http://www.ue-varna.bg/nsom/, 2011 - http://nsom.vuzf.bg/, 2010 - http://www.fmi.uni-sofia.bg/nsom, 2007 - http://olymp07-1.page.tl/)
Cambodia
Singapore and Asian Schools Maths Olympiad (SASMO Cambodia) http://mathsolympiads.org/cambodia
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
The Canadian Mathematics Olympiad (CMO) is the official competition whose top performers earn the right to represent Canada at the International Mathematical Olympiad (IMO). It runs each April. To be invited to write the CMO, students need to do very well on at least one of these:
Canadian Open Mathematics Challenge (COMC) - open to all interested students. Runs in November.
CMO Qualifying Repêchage (CMOQR) - by invitation only based on COMC performance. Runs in February.
The competitions above are all "full solution" exams on paper and are operated by the Canadian Mathematical Society. Past exams and solutions are provided free online.
The Spirit of Math Annual National Contest (since 1999) :
Grade 1
Grade 2
Grade 3
Grade 4
The New Pythagoreans Math Competition (http://www.school4math.ca) since 2014, Grades 1-12, hosted annually during May/June. It is an enthusiastic initiative to present math in an enjoyable way to students of all grades when thinking outside the box of the standard multiple choice question.
Canadian Math Kangaroo Contest (http://www.mathkangaroocanada.com) since 2001
International competitions hosted by The Centre for Education in Mathematics and Computing (CEMC) (since 1969, past problems available):
Full Solutions:
Euclid (12th grade students)
Canadian Senior Mathematics Contest (11th and 12th grade students)
Canadian Intermediate Mathematics Contest (9th and 10th grade students)
Hypatia (11th grade students)
Galois (10th grade students)
Fryer (9th grade students)
Multiple Choice:
Fermat (11th grade students)
Cayley (10th grade students)
Pascal (9th grade students)
Gauss (7th and 8th grade students)
National competitions hosted by Mathematica - The Mathematics Contest Centre (since 2005):
Multiple Choice:
Newton Contest (9th grade students)
Lagrange Contest (8th grade students)
Euler Contest (7th grade students)
Pythagoras Contest (6th grade students)
Fibonacci Contest (5th grade students)
Byron-Germain Contest (4th grade students)
Thales Contest (3rd grade students)
MATHChallengers (formerly MathCounts BC) is called MathChallengers since 2005. It is hosted by APEGBC.(8th and 9th grade students)
Quebec Foundation for Academic Achievements (FQRA) (since 1996) :
Grade 2 and 3
Grade 4 and 5
Grade 6 and 7
Grade 8 and 9
Grade 10 and 11
Vancouver Math Olympiad Young Years Program (YYP) (since 2015) is a paper-pencil math competition for elementary and middle school students in British Columbia:
Grade 2
Grade 3
Grade 4
Grade 5
Grade 6
Grade 7
Grade 8
CMO (China Mathematics Olympiad 中国数学奥林匹克)
CUMCM(China Undergraduate Mathematical Contest In Modeling)
TZMCM("Maths China Cup" National Online Mathematical Challenge In Modeling)
EMCM (China Undergraduate Electronic Mathematical Contest In Modeling)
CWMO (Western China Mathematics Olympiad)
CGMO (China Girl Mathematics Olympiad) — for female secondary students
CSMO (South-eastern China Mathematics Olympiad) — for secondary students
CNMO (China Northern Mathematics Olympiad)
National High School Math League 全国高中数学联赛
CJMO (China Junior Math Olympiad)- for secondary students
CPMO (China Primary Math Olympiad)- for elementary students
HuaLuoGeng Golden Cup (Hua Cup)- for elementary and middle school students
Singapore and Asian Schools Maths Olympiad (SASMO China) http://mathsolympiads.org
Xi Wang Cup (Hope Cup)- for elementary and middle school students
Zou Mei Cup (grades 3-8)- includes a written exam and an essay
Ying Chun Cup (grades 3-7)
Zhonghuanbei (grades 2-9) official website: http://www.siwei100.com/
OCM (Colombian Mathematics Olympiad)
OCMU (Colombian Mathematics Olympiad for University students)
CRM (Colombian Mathematics Competition for the Regions)
ORM (Colombian Regional Mathematics Competition)
Web site: http://olimpia.uan.edu.co/olimpiadas/public/frameset.jsp
Hrvatska matematička olimpijada (Croatia Mathematical Olympiad)
Državno natjecanje (National Competition)
Cyprus Mathematical Olympiad — Mathematics competitions for students in every grade.
Junior high-school (Gymnasium) Competitions — For students under 15.5 years old (1st, 2nd, and 3rd grade of Gymnasium)
High School (Lyceum) Competitions — For students above 15.5 years old (1st, 2nd, and 3rd grade of Lyceum)
European Kangourou Mathematics Competition
MO (Czech National Mathematics Olympiad, http://www.math.muni.cz/~rvmo)
PraSe (Prague Mathematics Correspondence Seminar for Secondary School Students, http://mks.mff.cuni.cz)
Brkos (Brno Mathematical Correspondence Seminar for Secondary School Students, http://www.math.muni.cz/~brkos)
iKS (International Correspondence Seminar for Secondary School Students, http://iksko.org)
Klokan (Mathematics competition for all students age 6 - 22) http://matematickyklokan.net/
Pangea (International Mathematics Competition for grades 4,5,6,7 and 8) http://pangea-edu.cz. Pangea is organized by www.meridianedu.cz
Georg Mohr (Contest for Danish high school students, http://www.georgmohr.dk)
Matemaatikaviktoriin Nuputa
Kuubik
Känguru
Püramiid
Eesti matemaatikaolümpiaad
Matemaatika lahtine võistlus
Finland
Peruskoulun matematiikkakilpailu (Basic School Mathematics Contest), grade 9. http://www.maol.fi/kilpailut/peruskoulun-matematiikkakilpailu/
Lukion matematiikkakilpailu (High School Mathematics Contest), grades 10 to 12, http://www.maol.fi/kilpailut/4tieteenkisat/lukion-matematiikka/
Olympiade Française de Mathématiques (OFM)
Kangourou des mathématiques
Concours général
Tournoi Français des Jeunes Mathématiciennes et Mathématiciens (TFJM)
Everest — Mathematics competition for 2nd to 6th grade. Website — http://everest.ge/
DeMO (Deutsche Mathematik-Olympiade / German Math Olympiad, http://www.mathematik-olympiaden.de)
BWM (Bundeswettbewerb Mathematik / Federal Math Competition, http://www.bundeswettbewerb-mathematik.de),
AIMO (Auswahlwettbewerb zur Internationalen Mathematik-Olympiade / Team selection tests for the IMO, http://www.bundeswettbewerb-mathematik.de/imo/main.htm)
LWMB (Landeswettbewerb Mathematik Bayern / Bavarian Math Competition, http://lwmb.de), LWM (Landeswettbewerb Mathematik Baden-Württemberg / Math Competition of Baden-Württemberg, http://landeswettbewerb-mathematik.de)
Pangea Mathematics Competition (Pangea Mathematikwettbewerb, http://www.pangea-wettbewerb.de)
Θαλής (Thales) - first round
Ευκλείδης (Euclides) - second round
Αρχιμήδης (Archimedes) - third round
Λευκοπούλειος Διαγωνισμός Πιθανοτήτων και Στατιστικής - "Leukopouleios" Contest on Probabilities And Statistics - a competition that is not related to IMO, organised by ESI (National Statistic Institut)
Math Kangaroo Competition
Seen also Hellenic Mathematical Society
Hong Kong Mathematics Olympiad
The Hong Kong Mathematical High Achievers Selection Contest. Only Form 1 to form 3 students may participate in this contest.
International Mathematical Olympiad Preliminary Selection Contest - Hong Kong (IMO HK Prelim, 2012 Official Website)
Pui Ching Invitational Mathematics Competition (Official Website)
Inter-school Mathematics Contest, a yearly contest organized by the Hong Kong Joint School Mathematics Society.
Sing Yin Secondary School Invitational Mathematics Competition
Primary Mathematics World Competition (Primary Mathematics World Contest)
Singapore and Asian Schools Maths Olympiad Indonesia (SASMO Hong Kong) http://www.hkmo.com.hk/contest/samo.php
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
Miklós Schweitzer Competition
Nemzetközi Kenguru Matematika Verseny (2nd to 12th grade students)Homepage: http://www.zalamat.hu/
Kalmár László Országos Matematika Verseny (3rd to 8th grade students)
Zrínyi Ilona Országos Matematika Verseny (2nd to 8th grade students)
Varga Tamás Matematika Verseny (7th and 8th grade students)
Bátaszéki Matematika Verseny (3rd to 8th grade students)
Középiskolai Matematikai Lapok (a year-long contest, each month you have to submit solutions to some problems, 9th-12th grade, Homepage in English: http://www.komal.hu/info/bemutatkozas.e.shtml )
Arany Dániel Matematika Verseny (9th and 10th grade students)
Gordiusz Matematika Tesztverseny (9th to 12th grade students)
OKTV (Országos Középiskolai Tanulmányi Verseny, 11th and 12th grade)
The Eötvös competition (Kürschák József, first year university students or below)
Medve Szabadtéri Matekverseny (5th to 12 grade students + adults) Homepage: http://medvematek.hu/esemenyek/verseny
Ignited Mind Lab mental maths competition aims to develop interest in mental maths. http://www.ignitedmindlab.com
Ignited Mind Lab Mental Maths Competition = Excellence in Arithmetic + Application of Maths concepts + HOTS (higher order thinking skills)
Regional Mathematical Olympiads held in every region. Leads to participation in Indian National Mathematical Olympiad, held every year as a part of selection process for International Mathematical Olympiad.
National Mathematics Talent Exams conducted by The Association of Mathematics Teachers of India, Chennai (For Vth to XIIth)
Singapore and Asian Schools Maths Olympiad Indonesia (SASMO Indonesia) http://www.mathsolympiads.org/indonesia
Mathematical Challenge Festival and Mathematics Modelling Competition http://mcf-mmc-itb.com/
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
National Science Olympiad held at every level of elementary education, secondary and higher education
1. Educational Level Elementary Science Olympiad (Olimpiade Sains Nasional SD)
2. Science Olympiad Level Secondary Education (Olimpiade Sains Nasional SMP)
3. Higher Education Level Science Olympiad (Olimpiade Sains Nsional SMA) Science Olympiad at higher education level or referred to the National Olympiad of Mathematics and Natural Sciences (ON MIPA) consists of 4 areas, namely Mathematics, Physics, Chemistry and Biology, held in 3 stages. The first stage in college, the second phase in Kopertis and the third stage in the Directorate General of Higher Education.
Preliminary Mathematics Olympiad, which successful applicants compete against one another on Iranian Olympiad Level 2 competitions, then they proceeded to compete for top six places in the country so they could participate in the International Mathematics Olympiad as representatives of Iran. http://www.ysc.ac.ir
INTERNATIONAL SCIENTIFIC LEAGUE OF PAYA is held once in a year in Tehran, the contest contains 3 rounds, Team contest, Individual contest, and Relay contest. The contest is held in 2 fields Mathematics and Physics.
Ireland
Irish Mathematical Societies Association Intervarsities. An annual event in which teams representing the mathematical societies of their respective colleges compete in an Olympiad styled event.
The Irish Mathematical Olympiad (IrMO), an annual competition held in May each year. Students that perform well in the Junior Certificate are invited to take part in training programmes, leading up to the competition.
Problem Solving for Irish Second Level Mathematicians (PRISM), a competition for secondary school students, organised by NUI Galway but held in the students' own schools. There are two competitions - one for junior students, and another for seniors <http://www.maths.nuigalway.ie/PRISM/>.
Team Math is held annually for secondary school students.
The Grossman Olympiad for high school students.
The Tournament of Towns (also called "Intercity Competitions in Math").
The Gillis Math Olympiad for high-school students, organized by the Weizmann Institute of Science along with the Davidson Institute.
The Zuta Math Olympiad for middle-school students, organized by the Weizmann Institute of Science along with the Davidson Institute. (No longer active, last occurrence was at 2013)
The Beno Arbel Olympiad for middle-school students, seems to replace Zuta since 2014 and is organized by Tel Aviv University
The Orange Math Olympiad, organized by the "Orange" Partner company of cellphones. (No longer active, last occurrence was at 2012)
The University Students Competition, supervised by the Israeli Mathematical Union.
The Tel-Aviv University also participates in the William Lowell Putnam Mathematical Competition.
The Math kangaroo Israel, started 2014, for grades 2-10.
The Baba math competition, for middle-school students, started for religious education only (2014), now open to all (2016).
International Internet Mathematical Olympiad at Ariel University.
Olimpiadi Italiane della Matematica (Italian Mathematical Olympiad). This is the national qualifying stage of the International Mathematical Olympiad.
Campionati Internazionali di Giochi Matematici (International Mathematical Game Championship). This is the national qualifying stage of the Championnat International de Jeux Mathématiques et Logiques.
Kangourou della Matematica (Mathematics Kangaroo). This is the national version of the Mathematical Kangaroo.
JMO (Japanese Mathematical Olympiad) http://www.imojp.org/index.html
Kinki University Mathematics Contest http://www.math.kindai.ac.jp/index.php?id=8
Kazakhstan
Singapore and Asian Schools Maths Olympiad Indonesia (SASMO Kazakhstan), http://mathsolympiads.org/kazakhstan/
Mangu National Mathematics Contest ( formerly Moi National Mathenatics Contest) which is held annually in the month of June at Mangu High School. The test paper is out of 30. To take the test, participating schools need to organise students in teams. Each team must consist of 10 students(6 form four students and 4 form three students). Several hundreds of schools attend the event with some schools presenting over four teams. There are oral quizzes which are open to anyone. The first to solve and present the answer to these quizzes are awarded with instant goodies. <http://www.elimu2.info/manguhighnew/content.php?pid=45>
Alliance Girl's National Mathematics Contest
Held annually at Alliance Girl's High School. Both paper test and oral quizzes conducted. <http://www.alliancegirlshigh.com/content.php?pid=36>
Open International Project <http://e-competition.eu> - Mathematics Online Competition "Eruditus" for Students <http://www.eruditus.lt/>
University Students Contest of Mathematics (http://www.kms.or.kr/conference/sub10.html)
KMO (Korean Mathematical Olympiad, http://www.kmo.or.kr/)
KMC (Korean Mathematics Competition, http://www.kmath.co.kr/)
Macao Mathematical Olympiad (Chinese homepage: http://www.sftw.umac.mo/~fstitl/olympiad/index.html )
Municipal Competition
Regional Competition
Republic Competition (different problems for each grade)
JMMO (Junior Macedonian Maths Olympiad) (all students younger than 15.5 years have same questions)
MMO (Macedonian Maths Olympiad) (all high school students have same questions)
Official website (in Macedonian): http://smm.org.mk/
Singapore and Asian Schools Math Olympiad (SASMO Malaysia) http://smo-testing.com/
American Mathematics Olympiad (AMO), http://smo-testing.com/
OMK (Olimpiad Matematik Kebangsaan / National Mathematical Olympiad), an annual competition organized by the Malaysian Mathematical Sciences Society, http://www.persama.org.my
IMC (IIUM Mathematics Competition), (an annual competition organized by International Islamic University Malaysia, http://www.iium.edu.my/imc)
MASMO (Malaysia ASEAN Schools Math Olympiads) http://www.masmo.info
Hua Lo-Keng Cup Mathematics Competition (an annual competition organized by the Selangor-KL Hokkien Association)
UTAR National Mathematics Competition (an annual competition organized by the University Tunku Abdul Rahman)
KMC (Kangaroo Math Competition http://kangaroomath.com.my/
Eye Level Math Olympiad (ELMO), (an annual competitioan organized by Daekyo Korea) http://www.myeyelevel.com/Local/services/introduction.aspx
Myanmar
Singapore and Asian Schools Math Olympiad (SASMO Myanmar), http://mathsolympiads.org/participants-myanmar/
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
MMO (Mexican Mathematical Olympiad <http://www.ommenlinea.org/> in Spanish OMM (Olimpiada Mexicana de Matemáticas)
Mathcounts - held annually at the American school of Puebla and open to ASOMEX students.
ONMAS (Olimpiada Nacional de Matemáticas para Alumnos de Secundaria)
ONMAP (Olimpiada Nacional de Matemáticas para Alumnos de Primaria) held along with ONMAS
Canguro Matemático (Math Kangaro)
Pierre Fermat Contest organized by IPN
Olimpiada de Mayo(The selective exam for Olimpiada Rioplatense de Matematias)
National Mathematical Tournament UAG
OEMEPS (Olimpiada Estatal de Matemáticas en Educación Primaria y Secundaria)
Mongolia
Singapore and Asian Schools Math Olympiad (SASMO Myanmar), http://mathsolympiads.org/mongolia
Netherlands
W4Kangoeroe (WereldWijde WiskundeWedstrijd Kangoeroe / world-wide math contest Kangaroo) http://w4kangoeroe.nl/)
JWO (Junior Wiskunde Olympiade / Junior Math Olympiad, http://www.few.vu.nl/nl/voor-het-vwo/scholieren/activiteiten/junior-wiskunde-olympiade/)
NWO (Nederlandse Wiskunde Olympiade / Dutch Mathematics Olympiad, http://wiskundeolympiade.nl/)
FNWI Wiskundetoernooi (math tournament at Radboud University Nijmegen, http://www.ru.nl/wiskundetoernooi/)
Twentse Wiskunde Estafette (math relay race at University of Twente, http://www.twenteacademy.nl/wedstrijden/twentse_wiskunde_estafette/)
Wiskunde A-lympiade (Math A-lympiad, where A refers to the Mathematics Alpha courses in Dutch secondary schools, http://www.fi.uu.nl/alympiade/)
Wiskunde B Dag (Math B Day, where B refers to the Mathematics Beta courses in Dutch secondary schools, http://www.fi.uu.nl/wisbdag/)
LIMO (Landelijke Interuniversitaire Mathematische Olympiade / National Interuniversitary Mathematical Olympiad, http://www.limo.a-eskwadraat.nl/)
MOAWOA (Mathematical Olympiad for All/Wiskunde Olympiade voor Allen, university math olympiad at Utrecht University)
New Zealand
Australasian Problem Solving Mathematical Olympiads (APSMO) <http://www.apsmo.info>
Problem Challenge <http://www.maths.otago.ac.nz/pc/>
Singapore - Asia Pacific Mathematical Olympiad for Primary Schools (APMOPS: http://www.hci.sg/aphelion/apmops/)
Auckland Mathematical Olympiad
Eton Press Senior Mathematics Competition
University of Otago Junior Mathematics Competition <http://www.maths.otago.ac.nz/jmc/>
September Problems (IMO Selection)
New Zealand Maths Olympiad (NZMO) <http://www.nzmosa.org/nz-mathematical-olympiad/>
Championnat National des Jeux Mathématiques, organized annually by the Association Nigerienne des Jeux Mathématiques(ANJM).
National Mathematics Olympiad (NMO), organized annually by the National Mathematical Center (NMC). <http://www.nmcabuja.org>
National Secondary Schools Mathematics Competition (NASSMAC), sponsored by Promasidor Nigeria Ltd (through their brand Cowbell Milk(tm)). It holds in the second term of every school year, around March to April.
Globe Mathematics Annual Quiz Competition Organized by Federal Ministry of Education for Unity colleges in Nigeria,around January to February.
Niels Henrik Abels matematikk-konkurranse (Norwegian Mathematical Olympiad, website available both in Norwegian and English at http://abelkonkurransen.no/)
ISMO (Inter School Maths Olympiad), National ISMO. (For Class V to VIII)
It is a Mathematics test based on Multiple Choice Questions. PakTurk International Schools and Colleges have been successfully organizing the Inter Schools Maths Olympiad (ISMO) for the students of private as well as the State Schools across Pakistan since 2005. ISMO has become a national event and being conducted all over Pakistan. This competition is conducted at different cities simultaneously. Attractive Cash Prizes along with Shields and Certificates are given away to the qualifying candidates. The first position holder (studying in class VIII) is awarded by the title "Al-Khwarizmi of Pakistan, of the year" after the name of Muḥammad ibn Mūsā al-Khwārizmī (Arabic: عَبْدَالله مُحَمَّد بِن مُوسَى اَلْخْوَارِزْمِي) (c. 780 - c. 850), a Persian Muslim mathematician, astronomer and geographer during the Abbasid Empire, a scholar in the House of Wisdom in Baghdad.
Links:
Official ISMO Website
ISMO Past Papers
PakTurk-Maths
Kangaroo
In 2006 almost 4,000,000 students from 41 countries played the game world-wide. The world "Kangaroo" center, which coordinates the competition in the various countries, was founded in 1994 in Paris. In Pakistan, the competition was first organized in 2005 by the Pakistan kangaroo Commission.
OPM (Olimpiada Panameña de Matematicas) <http://opm.org.pa/>
Olimpiadas Matemáticas Paraguayas (OMAPA) [3]
National Mathematic Olympiad - ONEM (Olimpiada Nacional Escolar de Matemática)
It's the official Olympiad, organized by the Ministry of Education and the Peruvian Mathematical Society in 4 phases. The final phase takes place near to Lima usually in November. Website available in Spanish: https://onemperu.wordpress.com/
Search for the Outstanding MATHLETE (High School and College Level) - Mathematics Division, University of the Philippines Los Baños
Southern Tagalog Invitational Mathematical Challenge (Highschool Level)-UPLB Mathematical Sciences Society [www.uplbmass.org]
Singapore and Asian Schools Maths Olympiad Indonesia (SASMO Philippines) http://mathsolympiads.org/philippines/
Philippine Mathematical Olympiad
Metrobank-Mathematics Teachers Association of the Philippines (MTAP) - Department of Education (DepEd) Math Challenge for Grade School and High School Students
Annual Nationwide Search for the Math Wizard (College Level) - University of the Philippines Mathematics Club [www.upmathclub.org]
Mathematics Festival
The Regionwide Search for the Little Math Wizard (Elementary Level)- University of the Philippines Mathematics Club
MATHirang MATHibay - University of the Philippines Mathematics Majors' Circle
MATHira MATHibay and STATstruck - Pamantasan ng Lungsod ng Maynila - Mathematical Society
PUP MathMax - Polytechnic University of the Philippines
Ateneo Mathematics Olympiad
MSA Battle for Math whiz
CIT University Mathematician of the Year
MTG - 8th International Mathematics and Science Olympiad.
Jr. Math Masters - Lyceum of the Philippines University - Cavite
National Math Wizard - Institute of Integrated Electrical Engineers: Council of Student Chapters
Math-Science Quiz - Philippine Science Consortium
Math-Science Quiz- National Secondary Schools
Math Wizard (College Division) - University of Makati, UMak Mathematics Society
Math Wizard (HSU Division) - University of Makati, UMak Mathematics Society
Sipnayan Math Contest for Grade School, High School, and College Division by Ateneo Mathematical Society (Old Website: sipnayan2012.webnode.com)
Annual Math-Physics Inter-School Quiz Show (AMPIQS for High School Level) - University of the Philippines - Baguio - UP Math-Physics Society
Math - tagisan (Elementary, High School and College level) - Philippine Normal University
Inter-High Math and Physics Quiz (IMPACT) - University of the Philippines Diliman
Singapore and Asian Schools Maths Olympiad Indonesia (SASMO Philippines) http://www.mathsolympiads.org/philippines
Poland
International Pangea Mathematical Contest (https://pangea.edu.pl)
Polish Mathematical Contest Sowa Matematyczna (Website)
Polish Mathematical Olympiad (Website)
Polish Mathematical Contest Alfik Matematyczny (Website)
Polish Mathematical Contest MAT (Website)
Portuguese Mathematics Olympiad - Olimpíadas Portuguesas da Matemática (in Portuguese)
Olimpíada Paulista de Matemática (with Brazil)
The Portuguese Tournament of Mathematical Games (some related information here)
Canguru Matemático - Canguru Matemático sem Fronteiras
Puerto Rican Mathematical Olympiad - http://www.ompr.pr (Olimpiadas Matemáticas de Puerto Rico (in Spanish))
Romanian National Olympiad <http://www.gazetamatematica.net/?q=forum/1019>
"Adolf Haimovici" Applied Mathematics Competition
http://www.tuiasi.ro/en/events/the-17th-of-adolf-haimovici-applied-mathematics-competition
Annual Contest of Gazeta Matematica "Nicolae Teodorescu" <http://www.gazetamatematica.net/?q=node/28>
The Mathematical Contest Traian Lalescu <http://www.colegiulnegruzzi.ro/index.php/negruzzi/activitati/premianti-subiecte-si-rezolvari/>
All-Russian Mathematical Olympiad <http://math.rosolymp.ru/>
St.Petersburg Math Olympiad <http://www.pdmi.ras.ru/~olymp/index.html>
Moscow Math Olympiad <http://olympiads.mccme.ru/mmo/>
Leonard Euler Math Olympiad <http://www.matol.ru/>
Russia Sharygin Geometry Olympiad <http://www.geometry.ru/>
Mathematical competitions in Serbia [4]
Problems from previous competitions - http://www.dms.org.rs/index.php?action=competitions_mathematics&change=true
International Singapore Maths Competition (ISMC) http://www.ismc.sg/
Singapore International Mathematics Olympiad Challenge (SIMOC). An international math olympiad competition first held in Singapore in 2015 and over 13 countries participated from SASMO's 15 country partners. http://simoc.sg/
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
Singapore Mathematical Olympiad (SMO, http://sms.math.nus.edu.sg/Competitions/CompetitionHomePage.aspx)
Singapore Mathematics Project Festival (SMPF, http://sms.math.nus.edu.sg/Festival/Festival.aspx)
Singapore Mathematical Society Essay Competition 2013 (SMSEC, http://sms.math.nus.edu.sg/competitions/Essay/EssayCompetition2013.aspx)
Singapore Science and Engineering Fair (SSEF, http://www.science.edu.sg/events/Pages/ssef.aspx)
National Mathematical Olympiad of Singapore (NMOS, http://oas.highsch.nus.edu.sg/NMOS/)
Mathlympics for all Singapore Primary Schools (Mathlympics, http://www.acsindep.moe.edu.sg/acs_indep/news.php?id=288)
Singapore International Mathematics Challenge (SIMC, http://www.highsch.nus.edu.sg/SIMC2010/)
Singapore and Asian Schools Maths Olympiad (SASMO) http://www.mathsolympiads.org
Singapore Math Kangaroo Contest (SMKC), http://mathkangaroo.sg/
Vega's Competition for elementary school students <http://www.dmfa.si/mat_OS/index.html>
Mathematical contest for secondary school students of Slovenia, Competition for students of upper secondary technical and vocational colleges in the knowledge of mathematics and Competition for students of upper secondary vocational schools in the knowledge of mathematics (15–19 years, http://www.dmfa.si/mat_SS)
Competition in business mathematics for secondary schools (15–19 years, http://www.dmfa.si/PMa_SS)
Competition in recreational mathematics <http://www.dmfa.si/RM>
Logic Monster competition (logic, grades 1-9) http://www.mathema.si, https://sites.google.com/site/logicnaposast/
Matemcek competition (spatial visualisation, grades 1-9) http://www.mathema.si, https://sites.google.com/site/matemcek201314si/
MO Mathematical Olympiad (in Slovak: Matematická olympiáda)
official website: http://skmo.sk
official website in English: http://skmo.sk/?jazyk=en
another website: http://matematika.okamzite.eu
KMS Korešpondenčný matematický seminár http://kms.sk/
iKS Korešpondenčný matematický seminár http://kms.sk/iks
STROM Korešpondenčný matematický seminár http://www.strom.sk
MATMIX Korešpondenčný matematický seminár http://www.matmix.sk
SEZAM Korešpondenčný matematický seminár http://www.sezam.sk
Matematická Olympiáda a Pytagoriáda v maďarčine pre ZŠ s VJM http://matek.ide.sk
Pikomat http://www.pikomat.sk/
Pytagoriáda http://www.iuventa.sk/sk/olympiady/olympiady-a-sutaze/pyt.alej
Riešky http://www.riesky.sk
South African Mathematics Olympiad (SAMO, http://www.samf.ac.za/)
South African Mathematics Team Competition (SAMTC, http://www.samf.ac.za/DisplayPage.aspx?ID=32)
University of Cape Town Mathematics Competition <http://math.uct.ac.za/competition/>
Living Maths <http://www.livingmaths.com>
Amesa <http://academic.sun.ac.za/mathed/AMESA/Challenge/Index.htm>
Spanish Mathematics Olympiad, OME (Olimpiada Matemática Española). Website in Spanish: http://www.olimpiadamatematica.es/platea.pntic.mec.es/_csanchez/olimmain.html
Skolornas matematiktävling (see http://www.math.uu.se/~dag/skolornas.html or http://www.math.chalmers.se/~sam/problemet/bok.html for older problems)
Högstadiets matematiktävling (http://www.matematiktavling.org/hmt/, open for students in grades 7 through 9)
Sigma 8 (see http://www.sigma8.se , open for students in grades 8 in cooperation with other Nordic countries.)
Regional competition (http://umath.nuk.edu.tw/~senpengeu/HighSchool for some problems)
National competition (http://umath.nuk.edu.tw/~senpengeu/HighSchool for some problems)
IMO selection and training camp
Thailand
2008 International Mathematics Competition (IMC 2008) http://www.imcthai.net/
National Mathematics Contest http://www.ipst.ac.th/olympic
IPST Genius Elementary School Project http://genius.ipst.ac.th/
Obec National Contest http://www.khangkhun.org
POSN-MO http://www.posn.or.th
The Mathematical Association of Thailand Contest http://www.math.or.th/
Diamond Crown http://www.romchatra.com/
Sermpanya Mathematics Test http://www.sermpanya.com
Thailand Mathematics Contest http://www.tmcthailand.net
National Final of the Tunisian Math games Cup launched by the A.T.S.M. Winners are allowed to participate to the International Mathematics Olympiads <http://www.atsm.org.tn>
Turkey National Mathematical Olympiad (Türkiye Ulusal Matematik Olimpiyatı (in Turkish), organized by TUBITAK) http://www.tubitak.gov.tr/bideb/
Akdeniz University Mathematical Olympiads (in Turkish) (since 1996)
http://matematik.fen.akdeniz.edu.tr/
Kangaroo Math Contest - Kanguru Matematik Sınavı (in Turkish). http://www.kanguru-tr.com/
Various mathematical competitions for high school students: http://matholymp.org.ua/
Various mathematical competitions for university students: http://putnam.ho.ua/
Most competitions are organised by the UK Mathematics Trust.
The Primary Mathematics Challenge (for primary school pupils) is organised by the Mathematical Association.
The Junior Mathematical Challenge is a multiple-choice competition for students up to year 8 in England and Wales, year S2 in Scotland, year 9 in Northern Ireland. High scorers in the JMC are invited to compete in the Junior Mathematical Olympiad.
The Intermediate Mathematical Challenge is a multiple-choice competition for students up to year 11 in England and Wales, year S4 in Scotland, year 12 in Northern Ireland. High scorers in the IMC are invited to compete in the Intermediate Mathematical Olympiad and Kangaroo (for the highest scorers) and in the European Kangaroo (another multiple-choice competition, for other high scorers).
The Senior Mathematical Challenge (formerly National Maths Contest) is a multiple-choice competition for students up to year 13 in England and Wales, year S6 in Scotland, year 14 in Northern Ireland.
High scorers in the SMC are invited to compete in the British Mathematical Olympiad <http://www.bmoc.maths.org/>.
There is a Team Maths Challenge for students in England, Wales and Northern Ireland; Scotland has its own Enterprising Mathematics Competition organised by the Scottish Mathematical Council.
The UCL Maths Challenge is a competition for Year 6 primary school pupils from London organised by UCL student volunteers <http://www.smnd.sk/kotanyi/maths_challenge/>.
Generally, registering for these contests is based on the grade level of math at which the student works rather than the age or the enrolled grade of the student. Also normally only competitions where the participants write a full proof are called Mathematical Olympiads.
National elementary school competitions (K-5) AND higher
ABACUS International Math Challenge (grades 3-8)
American Math Challenge, incorporating the MATHCOUNTS Foundation Online Challenge [5] (ages 9 –14)
Caribou Mathematics Contests(https://www.cariboutests.com/) (grades 3 - 12)
Colorado Mathematical Olympiad[6] (grades 2 - 12)
Continental Mathematics League[7] (grades 2 - 9, Calculus and Computer)
Eye Level Math Olympiad[8] Global Math Olympiad (grades 2 - 9)
Eye Level's Critical Thinking Challenge[9] (grades 3 - 6; free to register)
Math Kangaroo Competition[10] (grades 2-12)
Math League (grades 4-12)
Mathnasium TriMathlon[11] (grades 2-5)
Mathematical Olympiads for Elementary and Middle Schools (MOEMS) (grades 4-6 and 7-8)
Mathematics Pentathlon[12] (grades K-7)
MathFax[13] (grades 3-12)
MathWizz[14] (grades K-12)
Monthly Math Challenge Problems (grades K-2)
National Number Knockout/ N2K(ages 9–14)
Noetic Learning Math Contest (grades 2-5)
Online Math League[15] (grades 2-9)
Perennial Math (grades 3-12)
SBU Math Contest (grades 3-8)
The Math & Logic Contests (grades 2-6)
Math Talent Quest (grades 1-8)
National middle school competitions (grades 6-8) AND lower/higher
ABACUS International Math Challenge (grades 3-8)
American Math Challenge, incorporating the MATHCOUNTS Foundation Online Challenge [16] (ages 9 –14)
American Mathematics Contest 8 (AMC->8), formerly the American Junior High School Mathematics Examination (AJHSME)
Caribou Mathematics Contests(https://www.cariboutests.com/) (grades 3 - 12)
Colorado Mathematical Olympiad[17] (grades 2 - 12)
Continental Mathematics League[18] (grades 2 - 9, Calculus and Computer)
Eye Level Math Olympiad[19] Global Math Olympiad (grades 2 - 9)
Kumon Math Challenge (grades 1-10)
Math Kangaroo Competition[20] (grades 2-12)
Math League (grades 4-12)
MathCON (grades 5-12) - http://www.mathcon.org/
MATHCOUNTS
MathFax[21] (grades 3-12)
Mathematical Olympiads for Elementary and Middle Schools (MOEMS)
MathWizz[22] (grades K-12)
National Number Knockout/ N2K (ages 6–14)
Online Math League[23] (grades 2-9)
Purple Comet! Math Meet[24]
Rocket City Math League[25] (pre-algebra to calculus)
SBU Math Contest (grades 3-8)
SIGMA http://sigmamathcontest.com [grades 6-9]
United States of America Mathematical Talent Search (USAMTS)
Math Talent Quest (grades 1-8)
National high school competitions (grade 9-12) AND lower
American Invitational Mathematics Examination (AIME)
American Mathematics Contest 10 (AMC->10)
American Mathematics Contest 12 (AMC->12), formerly the American High School Mathematics Examination (AHSME)
American Regions Mathematics League (ARML)
AoCMM Competition (http://aocmm.org/) Online math modeling research team competition held in fall each year.
Archimedean Challenge — Biannual, 4-months-long, for 13 - 18-year-olds (individuals or groups), participants research a famous, long-standing, unsolved problem in mathematics. <http://euclidlab.org/programs/archimedean-challenge/>
CalcBee http://calcbee.org (Grades 6-12)
Carnegie Mellon Informatics and Mathematics Competition (CMIMC)
Caribou Mathematics Contests(https://www.cariboutests.com/) (grades 3 - 12)
Colorado Mathematical Olympiad[26] (grades 2 - 12)
Duke University Math Meet (DUMU)
iTest
Harvard-MIT Mathematics Tournament (HMMT)
High School Mathematical Contest in Modeling (HiMCM)
Kumon Math Challenge (grades 1-10)
Mandelbrot Competition
Math Kangaroo Competition[27] (grades 2-12)
Math League (grades 4-12)
MathFax[28] (grades 3-12)
MathCON (grades 5-12) - http://www.mathcon.org/
Math-O-Vision[29] (grades 9-12)
MathWizz[30] (grades K-12)
Moody's Mega Math Challenge
Mu Alpha Theta
National Assessment & Testing
Online Math Open (OMO) http://onlinemathopen.netne.net/
Princeton University Mathematics Competition (PUMaC)
Purple Comet Math Meet
United States of America Mathematical Olympiad (USAMO)
United States of America Mathematical Talent Search (USAMTS)
Rocket City Math League[31] (pre-algebra to calculus)
SkillsUSA Related Technical Math
SIGMA http://sigmamathcontest.com (Grades 6-9)
Stanford Math Tournament http://sumo.stanford.edu/smt/
Who Wants To Be A Mathematician [32]
Caltech Harvey Mudd Math Competition
Berkeley Math Competition
Regional Math Field Day competitions
AMATYC Mathematics Contest
Mathematical Contest in Modeling (MCM)
William Lowell Putnam Mathematical Competition
See List of United States regional mathematics competitions.
K-12 US math contest lists and online resources
Homeschool Math Contests: extensive, up to date lists of individual, local, and regional math contests for all students
Art of Problem Solving Foundation math contest lists
Tennessee University lists of mathematics competitions
Com-Partida de Matemática del Uruguay
Singapore and Asian Schools Math Olympiad (SASMO Uzbekistan)
Olimpíada Recreativa de Matemática de Venezuela (ORM, http://www.olimpiadarecreativa.com)
Olimpíada Juvenil de Matemática de Venezuela (OJM, http://www.acm.ciens.ucv.ve/)
Vietnam Mathematical Olympiad — Official National Contest for mathematics talents.
Singapore and Asian Schools Math Olympiad (SASMO Vietnam), http://mathsolympiads.org/Vietnam
30/4 Olympiad for Mathematics — Regional Olympiad in the Southern Vietnam (for students in provinces from Quảng Bình to Cà Mau).
Vietnam Mathematics Competition for University Students.
American Mathematics Olympiad (AMO), http://amo.sg/#!/about-us/
