Øystein is a Norwegian given name of Old Norse origins. Notable people with the name include:
Øystein Aarseth (1968–1993), Norwegian guitarist (pseudonym Euronymous), co-founder of the black metal band MayhemØystein Alme (born 1960), Norwegian authorØystein Andersen or Wig Wam, Norwegian hard rock and glam rock bandØystein Baadsvik (born 1966), Norwegian tuba soloist and chamber musicianØystein Bache (born 1960), Norwegian comedian and actorØystein B. Blix (born 1966), Norwegian jazz musician (trombone) and sound designerØystein Bonvik (born 1971), Norwegian communication consultant, writer and lecturerØystein Bråten (born 1995), Norwegian freestyle skierØystein Brun (born 1975), the guitarist and founder of the Norwegian black metal band BorknagarØystein Carlsen (born 1973), Norwegian speed skaterØystein Dahle (born 1938), Norwegian businessperson and organizational leaderØystein Djupedal (born 1960), Norwegian politician for the Socialist Left PartyØystein Dolmen (born 1947), known as Knutsen, Norwegian singer-songwriter, one half of the duo Knutsen & LudvigsenØystein Drillestad (born 1970), retired Norwegian football midfielderØystein Elgarøy (1929–1998), Norwegian astronomer, with a specialty in solar radio astronomyØystein Erlendsson (died 1188), Archbishop of Nidaros from 1161 to his deathØystein Fevang (born 1963), Norwegian singer and choir conductorØystein Fischer (born 1942), Norwegian physicist and specialist in the field of superconductivityØystein Gåre (1954–2010), Norwegian football coachØystein Greni (born 1974), the singer and lead guitar player of the Norwegian rock and roll band BigBangØystein Grødum (born 1977), Norwegian speedskater, who is a member of Arendal SKØystein Halvorsen, Norwegian orienteering competitor who competed in the 1970sØystein Haraldsson (c. 1125 – 1157), king of Norway from 1142 to 1157Øystein Hauge (born 1956), Norwegian writerØystein Havang (born 1964), Norwegian handball playerØystein Hedstrøm (born 1946), Norwegian politicianØystein Gullvåg Holter (born 1952), Norwegian sociologist and expert on men's studiesØystein I (1088–1123), King of Norway (as Eystein I) from 1103 to 1123 with his brothers Sigurd the Crusader and Olaf MagnussonØystein III, elected a rival King of Norway during the Norwegian Civil War periodØystein Jarlsbo (born 1961), former Norwegian ice hockey playerØystein Jevanord (born 1959), Norwegian drummerØystein Josefsen (born 1944), Norwegian businessman and former politician for the Conservative PartyØystein Kristiansen, Norwegian orienteering competitor and World championØystein Ingar Larsen (born 1941), Bishop of the Diocese of Sør-Hålogaland from 1992 to 2006Øystein Linnebo, Norwegian philosopher of mathematics at Birkbeck College, University of LondonØystein Lønn (born 1936), Norwegian writerØystein Mæland (born 1960), Norwegian psychiatrist, civil servant and politician for the Labour PartyØystein Mellerud (1938–1989), Norwegian ice hockey playerØystein Moen (born 1980), Norwegian jazz pianist and composer, plays in the bands Jaga Jazzist and PumaØystein Neerland (born 1964), former Norwegian football forward, best known for his time in MoldeØystein Norvoll (born 1954), Norwegian jazz musician (guitar), winner of the «Gjett på Jazz» (1973)Øystein Olsen (economist) (born 1952), Norwegian public servant, Governor of the Central Bank of NorwayØystein Olsen (ice hockey) (born 1969), former Norwegian ice hockey playerØystein Ore (1899–1968), Norwegian mathematicianØystein Kvaal Østerbø (born 1981), Norwegian orienteering and ski-orienteering competitorØystein Øvretveit (born 1994), Norwegian footballerØystein Øystå, born as Øystein Anderssen (born 1934), Norwegian writerØystein Paasche (born 1963), Norwegian musician and drummer in deLillosØystein Pettersen (born 1983), Norwegian cross country skierØystein Olsen Ravner (1893–1975), Norwegian appointed councilor of state (1940–1941), and minister (1941–1942)Øystein Rian (born 1945), Norwegian historianØystein Rottem (1946–2004), Norwegian philologist, literary historian and literary criticØystein Runde (born 1979), Norwegian comics writer and comics artistØystein Sevåg (born 1957), Norwegian classical and world music composer and musicianØystein Slettemark (born 1967), Greenlandic biathleteØystein Sørensen (born 1954), Norwegian historianPer Øystein Sørensen, Norwegian singer and songwriter, vocalist of the new wave/synthpop band Fra Lippo LippiØystein Sunde (born 1947), Norwegian folk singer and guitaristØystein Thommessen (1890–1986), Norwegian lawyerØystein Wiik (born 1956), Norwegian actor, singer, songwriter and novelistØystein Wingaard Wolf (born 1958), Norwegian poet, living and working in OsloØystein Wormdal, retired Norwegian footballer