Krasnoslobodsk (Russian: Краснослобо́дск; Moksha: Ош, Oš; Erzya: Якстерекуро ош, Jaksterekuro oš) is a town and the administrative center of Krasnoslobodsky District of the Republic of Mordovia, Russia, located on the left bank of the Moksha River (a tributary of the Oka), 107 kilometers (66 mi) west of Saransk, the capital of the republic.

[2] It has been known since 1571; town status was granted to it in 1780.

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

[1] As an administrative division, it is incorporated within Krasnoslobodsky District as the town of district significance of Krasnoslobodsk.

[1] As a municipal division, the town of district significance of Krasnoslobodsk is incorporated within Krasnoslobodsky Municipal District as Krasnoslobodskoye Urban Settlement.