Sergio Andres Roitman (born 16 May 1979), nicknamed 'Motoneta' (Shotgun in Spanish) is a retired professional tennis player from Argentina. He achieved a career-high rankings of world No. 62 in singles in October 2007, and world No. 45 in doubles in September 2008. He won several Challenger and Futures singles titles in his career. In addition, Roitman won two ATP doubles titles - at Amsterdam in 2000, and Umag in 2001.