 | This article needs additional citations for verification. (November 2019) |
 Northwestern Mari national costume | |
| Total population | |
|---|---|
| c. 15,000 | |
| Regions with significant populations | |
 Russia
| 14,970 (2010)[1] |
| Languages | |
| Northwestern Mari, Russian | |
| Religion | |
| Predominantly Russian Orthodox Christianity and Mari Native Religion | |
| Related ethnic groups | |
| other subgroups of Mari people | |
The Northwestern Mari (self definition: йөтнӫмӓл-кӓсвел маре, Russian: северо-западные марийцы) are a subgroup of the Mari people and the indigenous people of the Kirov and Nizhny Novgorod oblasts of Russia. As with other Mari subgroups, they are Volga Finns. Their native language is Northwestern Mari, one of the four surviving members of the Mari branch of the Uralic language family.