Sergey Lebedev, Sergei Lebedev, Sergej Lebedev, Sergei Lebedew, or may refer to:
Sergey Lebedev (chess player) (1868–1942), Russian chess player Sergey Lebedev (chemist) (1874–1934), Russian chemist Sergey Lebedev (scientist) (1902–1974), Russian electrical engineer and computer scientist Sergey Lebedev (politician) (born 1948), Uzbekistan-born Russian politician Sergey Lebedev (footballer) (born 1969), Uzbekistan-born Soviet association football midfielder Sergei Lebedev (writer) (born 1981), nominated for the 2021 Jan Michalski Prize