Sergei Alexandrovich Frolov (; born June 29, 1974, in Moscow) is a Russian stage, television, and film actor, laureate of the State Prize of the Russian Federation (2003).
Graduated from the music school at the Moscow Conservatory (1991) and acting and directing department of GITIS (1999; Mark Zakharov's course).
He made his debut on the theater stage in Lenkom and worked in this theater for nine years.
He has been acting in films since 1999. In 2004/05 he was a TV presenter on the Ren TV channel.