Mario Alberto Yepes Díaz (born 13 January 1976) is a Colombian professional footballer, who plays as a defender for Serie A club Milan. He has also been the captain of the Colombian national team since 2008.

When Mario Yepes started his playing career in 1995 with Cortuluá, he was playing as a forward before Cortulua's coach converted him to a libero (sweeper). His career really took off after he signed for his home town club Deportivo Cali in 1998. He won two Colombian championships with Deportivo Cali.

In 1999, he joined River Plate in Argentina, where he became a star and won two Argentine Primera championships. In spite of the fact that several Italian and English clubs wanted to recruit him, he signed for FC Nantes Atlantique in January 2002 where his nickname was “El Rey.” He became one the best central defenders of the French first division and joined Paris Saint-Germain in 2004, where his nickname is "Super Mario" as a reference to his defensive abilities and fitness levels. In 2008 he joined Chievo Verona of Italy. He signed a new contract in summer 2009.

In March 2010, Chievo team-mate, Sergio Pellissier, confirmed that Yepes will join Milan in the summer, when his contract runs out.

On 1 July 2010, Milan delegate administrator Adriano Galliani declared that Yepes is a big player to replace Giuseppe Favalli who became a free agent on the same day.

Yepes has played over 70 games for the Colombian national team since his debut in 1999. He was part of the Colombia squad that won the Copa America in 2001. He was also in the squads for two other editions of the tournament in 1999 and 2007

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