Mathias Hain (born 31 December 1972) is a German former professional footballer who played as a goalkeeper. He is the brother of Uwe Hain, himself a former goalkeeper. Hain was known for his great shot stopping ability and, during his time at Arminia Bielefeld, captained the side until he left in 2008. He currently works as a goalkeeping coach for his final club as a player - Hamburg based FC St. Pauli.