Mark Feygin (born 3 June 1971) is a Russian lawyer and politician. He served from January 1994 to December 1995 as a deputy of the State Duma and was the vice mayor of Samara. In 2011 and 2012, Feygin was active in opposition to President Vladimir Putin, and announced that he was forming an opposition party.In 2012, Feygin served as one of three lawyers for Pussy Riot, a punk band arrested for an unauthorized performance in Moscow's Cathedral of Christ the Savior.