Martin Damm Sr. (born 1 August 1972) is a Czech former professional tennis player. He had a career-high doubles ranking of world No. 5 in the world, achieved in April 2007, and a singles ranking of No. 42, achieved in August 1997. Damm won 40 ATP Tour-level doubles titles, including a major at the 2006 US Open. He reached five ATP Tour singles finals. Damm retired from the sport in September 2011. His son, Martin Damm, Jr., is also a professional tennis player.
Damm and wife, Michaela, have two sons (Maxmillian Martin; born 1 February 2002) and Martin Jr. (born 30 September 2003), and one daughter (Laura Michelle Damm; born 3 December 2007), all born in Bradenton, Florida.