Shyoltozero (Russian: Шёлтозеро; IPA: [ˈʂoltəzʲɪrə]; Veps: Šoutjärv’; Karelian: Šoutjärvi) is a rural locality (a selo) in the Prionezhsky District of the Republic of Karelia, Russia, located 84 kilometers (52 mi) south of Petrozavodsk, close to the shore of Lake Onega.