Snezhinsk (Russian: Сне́жинск, IPA: [ˈsnʲeʐɨnsk]) is a closed town in Chelyabinsk Oblast, Russia.

During the Soviet era, Snezhinsk was a closed city: it was not shown on maps and civil overflights were forbidden.

[2] As a municipal division, the Town of Snezhinsk is incorporated as Snezhinsky Urban Okrug.

[2] Snezhinsk is one of two centers of the Russian nuclear program (the other is Sarov) and is built around a scientific research institute—"All-Russian Scientific Research Institute Of Technical Physics".

Snezhinsk is a sister city of Livermore, California, United States.