Sergei Viktorovich Kolotovkin (; born 28 September 1965) is a retired Soviet and Russian football player and coach. He last worked as the manager of the Russian Second Division club FC Reutov.
Kolotovkin played in the Soviet Top League (and later, Russian Top League) with FC Zenit Leningrad, PFC CSKA Moscow, FC Dynamo Moscow, FC Tyumen and Rostelmash Rostov. He played in 157 league matches before he scored his first goal (for Rostelmash in May 1999).
Kolotovkin played his first game for Russia on 16 August 1992 in a friendly against Mexico.