The World Chess Championship 2008 was a best-of-twelve-games match between the World Chess Champion, Viswanathan Anand, and the previous World Champion, Vladimir Kramnik. Kramnik had been granted a match after not winning the World Chess Championship 2007 tournament.
After eleven games, Anand successfully defended his title by a final score of 6½–4½ (three victories and one defeat).
The match took place at the Art and Exhibition Hall of the Federal Republic of Germany in Bonn, Germany, between 14 October and 29 October 2008.
The match was a one-off event in which the previous world champion (Vladimir Kramnik) had been given the right to challenge to regain his title. Its origin was in the complications in reunifying the world title in 2006.
The chess world title was split between 1993 and 2006. In early 2006, FIDE had already announced the conditions for the World Chess Championship 2007: an eight-player tournament which included FIDE World Champion Veselin Topalov, but not "Classical" World Champion Vladimir Kramnik. FIDE later organized a reunification match between Kramnik and Topalov (the World Chess Championship 2006), with Kramnik to take Topalov's place in the 2007 tournament if he was to win the match. Kramnik did win the match and the reunified World Chess Championship, and so Topalov was excluded from the 2007 World Championship.
In June 2007 FIDE announced that Topalov would get special privileges in the World Chess Championship 2010 qualifying cycle, while Kramnik, if he lost his title in 2007 (which he did, coming second behind Viswanathan Anand), would play a match with the tournament champion in 2008.