The 2003 Wimbledon Championships was a tennis tournament played on grass courts at the All England Lawn Tennis and Croquet Club in Wimbledon, London in England. The tournament ran from 23 June to 6 July 2003. It was the 117th edition of the Wimbledon Championships and the third Grand Slam event of the year. Roger Federer won his first Grand Slam title, marking the beginning of his dominant era in men's tennis.
Lleyton Hewitt, the defending men's singles champion and top seed, was defeated in the first round by qualifier Ivo Karlovic in four sets. This was a historic upset, as Karlovic was ranked 203rd at the time and was playing in his first-ever Grand Slam main draw.
British hope Tim Henman was defeated in the quarterfinals by Frenchman Sebastien Grosjean in four sets, ending the home crowd's hopes for a British men's singles champion for another year.
Serena Williams defeated her sister Venus Williams 4-6, 6-4, 6-2 to win the women's singles title. This was Serena's second consecutive Wimbledon title and her sixth Grand Slam singles title overall.
Kim Clijsters and Ai Sugiyama won the women's doubles title by defeating Virginia Ruano Pascual and Paola Suárez in the final. This was the first Grand Slam women's doubles title for both players.
Roger Federer defeated Mark Philippoussis 7-6, 6-2, 7-6 to win the men's singles title. This victory marked Federer's first Grand Slam title, launching one of the most successful careers in tennis history.
Martina Navratilova, at the age of 46, won her 20th and final Wimbledon title by capturing the mixed doubles championship alongside Leander Paes. They defeated Anastassia Rodionova and Andy Ram in the final.