Ostein as a Baby Name. Meaning and Origin of Ostein

What is the meaning of the name Ostein ?

The baby name Ostein is a Male name , 2 syllables long and is pronounced /ˈøy.stɛin/ (Norwegian, approx. 'OY-stine'),/ˈoʊ.stiːn/ (anglicized, approx. 'OH-steen').

Ostein is Norse in Origin.

Ostein is a modern Anglicized form of the Scandinavian name Øystein/Eystein, ultimately from Old Norse Eysteinn. It is built from ey “island” and steinn “stone,” yielding the sense “island stone” or more figuratively “steadfast as a rock.” The name belongs to the broader Norse tradition of compound names featuring steinn, a common element denoting firmness and durability.

In medieval Scandinavia, Eysteinn/Øystein was well established: it was borne by Norwegian kings Eystein I Magnusson and Eystein II Haraldsson, and by the influential 12th‑century archbishop and later saint, Eystein Erlendsson of Nidaros. While Ostein itself is uncommon in English, its cognates remain familiar in the Nordic countries. Principal variants include Øystein (Norwegian), Eystein (Norwegian/Icelandic), Oystein (transliteration without the Ø), and Östen (Swedish), with rarer forms such as Østen and Esten also attested.

⚙ Ostein is about as rare as a name gets. We hold just 3 recorded uses of it, from 2 countries.