The Federal Guard Service of the Russian Federation[1] (Russian: Федеральная служба охраны Российской Федерации, IPA: [fʲɪdʲɪˈralʲnəjə ˈsluʐbə ɐˈxranɨ rɐˈsʲijskəj fʲɪdʲɪˈratsɨɪ] (Federal'naya sluzhba okhrany Rossiyskoy Federatsii)), also known as the FGS of Russia (Russian: ФСО России, IPA: [ɛf ɛs ˌo rɐˈsʲiɪ]), is a federal government agency concerned with the tasks related to the protection of several high-ranking state officials, mandated by the relevant law, including the President of Russia, as well as certain federal properties.

Under article 7 of the law, "the President of the Russian Federation, while in office, shall not be allowed to forego state protection.

[3] The FSO includes an estimated 50,000 troops[4] and controls the "black box" that can be used in the event of nuclear war.

The FSO is a powerful institution with a range of rights and powers, including the right to conduct searches and surveillance without warrants, make arrests, and give orders to other state agencies.

A more recent addition to the FSO infrastructure is the Special Communications Service of Russia (Spetsviaz) which was incorporated as a structural sub unit on August 7, 2004.