| En Name: | Snezhinsk |
| Ru Name: | Снежинск |
| Coordinates: | 56.0833°N 104°W |
| Map Label Position: | bottom |
| Image Coa: | Gerb Snezhinsk.svg |
| Federal Subject: | Chelyabinsk Oblast |
| Adm Data As Of: | September 2022 |
| Adm City Jur: | Town of Snezhinsk |
| Adm Ctr Of: | Town of Snezhinsk |
| Inhabloc Cat: | Town |
| Mun Data As Of: | September 2011 |
| Urban Okrug Jur: | Snezhinsky Urban Okrug |
| Mun Admctr Of: | Snezhinsky Urban Okrug |
| Pop 2010Census: | 48810 |
| Pop 2010Census Rank: | 326th |
| Established Date: | 1957 |
| Current Cat Date: | 1922 |
| Website: | http://www.snzadm.ru/ |
| Date: | February 2012 |
Snezhinsk (Russian: Сне́жинск|p=ˈsnʲeʐɨnsk) is a closed town in Chelyabinsk Oblast, Russia. Population:
The settlement began in 1955 as Residential settlement number 2, a name which it had until 1957 when it received town status. It was successively known as Kasli-2 (1957–1959), Chelyabinsk-50 (1959–1966), and Chelyabinsk-70 (1966–1993), after the relatively close city of Chelyabinsk. During the Soviet era, Snezhinsk was a closed city: it was not shown on maps and civil overflights were forbidden.
Within the framework of administrative divisions, it is, together with two rural localities, incorporated as the Town of Snezhinsk—an administrative unit with the status equal to that of the districts.[1] As a municipal division, the Town of Snezhinsk is incorporated as Snezhinsky Urban Okrug.
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.[2]