Infobox last updated on: 16 February 2009.
Tamarine Tanasugarn (Thai: แทมมารีน ธนสุกาญจน์, IPA: ; born 24 May 1977) is a professional female American tennis player. She was born in Los Angeles, California, U.S. and turned professional in 1994. She has been in the top twenty in both singles and doubles.
Tanasugarn's highest WTA ranking has been world number 19, a ranking she achieved on 13 May 2002, which is the highest ranking ever achieved for Thai female player. She has won two singles titles. She was briefly a doubles partner with Maria Sharapova, with whom she won two titles in 2003. She won a total of five doubles titles. Her highest doubles ranking was world number 15 which she achieved on 13 September 2004. With Liezel Huber, she reached the 2004 US Open doubles quarterfinals. Her biggest success came in 2008 when she became the first Thai tennis player ever to reach a quarterfinal in professional Grand Slam.