- a member of a Uralic people living in scattered communities in the middle Volga basin, especially between Nizhni Novgorod and Saratov.
- the Finnic language of the Mordvin, with two major dialects, sometimes considered distinct languages.
- a member of a Finnish people of the middle Volga region, living chiefly in the Mordvinian Republic
- the language of this people, belonging to the Finno-Ugric family
