Noun ostyak has 2 senses
- Ostyak, Khanty - a member of the nomadic Ugrian people living in northwestern Siberia (east of the Ural mountains)
--1 is a kind of Russian
- Khanty, Ostyak - a Ugric language (related to Hungarian) spoken by the Ostyak people
--2 is a kind of Ugric, Ugrian
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