Sergei Kudryavtsev

Sergei Kudryavtsev may refer to:


 * Sergei Kudryavtsev (politician) (1903–1938), Ukrainian communist Soviet politician
 * Sergei Kudryavtsev (diplomat) (1915–1998), Soviet intelligence officer and Soviet Ambassador to Cuba
 * Sergey Kudryavtsev (born 1956), Russian film critic and historian
 * Sergei Kudryavtsev (footballer) (born 1980), Russian footballer