Atyashevo (Russian: Атя́шево; Erzya: Отяжеле, Otäžele) is an urban locality (a work settlement) and the administrative center of Atyashevsky District of the Republic of Mordovia, Russia.

[2] It was founded in 1894; urban-type settlement status was granted to it in 1963.

[citation needed] Within the framework of administrative divisions, Atyashevo serves as the administrative center of Atyashevsky District.

[1] As an administrative division, the work settlement of Atyashevo is incorporated within Atyashevsky District as Atyashevo Work Settlement.

[1] As a municipal division, Atyashevo Work Settlement is incorporated within Atyashevsky Municipal District as Atyashevskoye Urban Settlement.