Øystein

Øystein is a masculine given name of Norwegian origin. It derives from the Old Norse name Eysteinn (also written Eyesteinn), formed from elements meaning "island" and "stone." The modern Norwegian form Øystein is the standard spelling in Norway, and related forms appear in other Nordic languages.

Variants and orthography include Øistein, Eystein, and Eyesteinn. The form with the letter Ø reflects Norwegian pronunciation; in other languages the name may appear as Eystein or Eyestein. The name has a long-standing presence in Norwegian naming traditions and remains in use today.

Notable people with the name include Øystein Aarseth (Euronymous), a Norwegian guitarist and a founding member of the black metal band Mayhem; Øystein Sunde, a Norwegian guitarist and singer known for folk and humor-infused songs; and Øystein Greni, a Norwegian musician and frontman of the band Bigbang.

The name is primarily used in Norway, often across generations, and has contributed to the cultural field through bearers in music and the arts. It does not convey a profession or caste, and it is used for males in Norwegian-speaking contexts.