Sergei Alekseyevich Galkin (; born 6 November 1964) is a Russian professional football coach and a former player. He is an assistant manager with the Under-21 team of FC Arsenal Tula.
As a player, he made his debut in the Soviet Second League in 1982 for FC Dynamo Vologda. Galkin played in the Soviet First League with FC Dynamo Vologda and FC Chkalovets Novosibirsk.