Klaus is a German given name and surname. It originated as a short form of Nikolaus, a German form of the Greek given name Nicholas.
Billy Klaus (1928–2006), US baseball player
Chris Klaus (born 1973), US entrepreneur
Frank Klaus (1887–1948), German-American boxer, 1913 Middleweight Champion
Josef Klaus (1910–2001), Chancellor of Austria 1966–1970
Karl Ernst Claus (1796–1864), Russian chemist
Václav Klaus (born 1941), Czech politician, former President of the Czech Republic
Brother Klaus, Swiss patron saint
Klaus Augenthaler (born 1957), German football player and manager
Klaus Badelt (born 1967), German composer; most famous work to date is from Pirates of the Caribbean
Klaus Barbie (1913–1991), German SS-Hauptsturmführer and Holocaust Perpetrator
Klaus Bargsten (1911–2000), German captain and sole survivor of the sunken U-boat U-521 in World War II
Klaus Dede (born 1935), German writer
Klaus Iohannis (born 1959), Romanian Politician
Klaus Fischer (born 1949), German footballer
Klaus Flouride (born 1949), bassist of the Dead Kennedys
Klaus Fuchs (1911–1988), German theoretical physicist and atomic spy
Klaus Gerhart (born 1965), outdoorsman and photographer
Klaus Isekenmeier (born 1975), German decathlete
Klaus Kinski (1926–1991), German actor
Klaus Lanzarini (born 1977), Italian freestyle swimmer
Klaus Meine (born 1948), lead singer of German hard rock band The Scorpions
Klaus Mertens (born 1949), German singer
Klaus Neumann (1923–2000), German World War II Luftwaffe Ace
Klaus Nomi (1944–1983), German entertainer
Klaus Schulze, German electronic music composer and musician
Klaus Tennstedt (1926–1998), German conductor
Klaus Voormann (born 1938), artist, musician, and record producer who was associated with the early days of The Beatles
Klaus Maria Brandauer (born 1943), theatrical name of Klaus Georg Steng, Austrian actor
Stefanos Klaus Athanasiadis (born 1988), Greek footballer of Greek and German origin
Klaus Schulten, Computational biophysicist
Klaus Baudelaire, character in the A Series of Unfortunate Events books
Klaus Heissler, character on American Dad!
Klaus, character on Beyblade: Metal Masters
Klaus Mikaelson, an original hybrid of vampire and werewolf on The Vampire Diaries as well as on The Originals
Klaus Daimler, character portrayed by Willem Dafoe in Wes Anderson's The Life Aquatic with Steve Zissou
Klaus, original name of Zanza, the main antagonist from Xenoblade Chronicles
Klaus Goldstein, a character in the Shall We Date?: Wizardess Heart+ App
Baron Klaus Wulfenbach, an antagonistic character from the Girl Genius web-comic
"Klaus" (The Vampire Diaries), a 2011 episode of the television series The Vampire Diaries
Klaus Wikipedia (Text) CC BY-SA