Mario Ančić, Croatian tennis player
Mario Ančić (Croatian pronunciation: [mâːrio âːntʃitɕ]; born 30 March 1984) is a Croatian former professional tennis player who currently works as a private equity vice president in New York City. He won three singles titles and five doubles titles. His career-high singles ranking came during the 2006 ATP Tour, when he reached world no. 7. Ančić helped Croatia to win the 2005 Davis Cup and at the Athens Olympic Games in 2004, he and Ivan Ljubičić won a bronze medal in doubles for Croatia.

As a teenager making his Grand Slam debut at the 2002 Wimbledon Championships, he defeated seventh-seeded Roger Federer. His best performance at Grand Slams came at the 2004 Wimbledon Championships, when he reached the semifinals.

During 2007 and 2008, infectious mononucleosis and minor injuries forced him to miss many major events, and his ranking dropped from No. 9 in January 2007 to No. 135 in January 2008.