Sergey Smirnov

Sergey Smirnov may refer to:
 * Sergey Smirnov (politician) (1918–2009), a Soviet state and party official
 * Sergei Mikhailovich Smirnov (born 1950), Russian KGB/FSB official
 * Sergei Sergeyevich Smirnov (born 1981), Russian footballer
 * Sergey Sergeyevich Smirnov (1895–1947), Russian geologist
 * Sergey Sergeyevich Smirnov (1915–1976), Russian writer
 * Sergey Ivanovich Smirnov (1953–2006), Russian artist
 * Sergey Victorovich Smirnov (1982-2020), Russian TV and voice actor
 * Sergey Smirnov (shot putter) (born 1960), Soviet shot putter
 * Sergey Smirnov (basketball), basketball player
 * Sergei Smirnov (figure skater), Russian former pair skater
 * Sergey Smirnov (rower) (born 1961), Soviet Olympic rower
 * Sergey Smirnov (journalist) (born 1975), Russian journalist, editor-in-chief, MediaZona
 * Sergei Smirnov, a fictional character in the anime series, Mobile Suit Gundam 00