СССР is the abbreviation of "Союз Советских Социалистических Республик", the Soviet Union written with Cyrillic characters. The Cyrillic letters С and Р correspond to Latin S and R, so this is also written as SSSR.

CCCP may also refer to:

• C.C.C.P. (band), a German group
• CCCP - Fedeli alla linea, an Italian band formed in 1982
• Cat Colony Care Programme, in Asia, of the Society for the Prevention of Cruelty to Animals
• Carbonyl cyanide m-chlorophenyl hydrazone, a toxic ionophore and decoupler of the respiratory chain
• Combined Community Codec Pack, a software pack for Microsoft Windows to play multimedia content
• Climate Change and Carbon Plan, a strategic plan adopted by the Oregon Board of Forestry, US

• CCP (disambiguation)
• California Code of Civil Procedure (CCP)