Gastón Norberto Gaudio (born December 9, 1978 in Temperley, Buenos Aires), nicknamed El Gato (The Cat in Spanish) and Mr Freeze (because of the expression Pecho frio), is a professional tennis player from Argentina. His career-high ATP Entry ranking was No. 5 in 2005. His most significant victory came in his 2004 French Open victory.
Gaudio is one of the most unpredictable players in the modern game, as he is capable of spectacular shotmaking especially with his outstanding single-handed backhand and clever dropshots. Within a short timeframe, however, he can self-destruct leaving himself and tennis fans in general frustrated with his inability to retain a consistent level of play. This is something that Gaudio himself acknowledges.
Gaudio is a fan of Club Atlético Independiente football team. He learnt the game at the Temperley Lawn Tennis Club and his first coach was Roberto Carruthers. In addition to tennis Gaudio played football and rugby as a child and chose tennis to help out his parents financially when their business ran into economic problems.