Sim (Russian: Сим) is a town in Ashinsky District of Chelyabinsk Oblast, Russia.

It is located on the Sim River, 340 kilometers (210 mi) west of Chelyabinsk and is the administrative center of the oblast.

[7] It was founded in 1759 and named Simsky Zavod (Си́мский Заво́д, lit.

[citation needed] It was renamed Sim and granted town status on November 13, 1942.

[citation needed] Within the framework of administrative divisions, it is incorporated within Ashinsky District, together with two rural localities, as the Town of Sim.