World Rapid Chess Championship 2021

World Rapid Chess Championship 2021
 
World Rapid Champion
Women's World Rapid Champion
 
  Nodirbek Abdusattorov Alexandra Kosteniuk
 
9½/13Scores9/11
  Born 18 September 2004
17 years old
Born 23 April 1984
37 years old
  Rating: 2593
(World No. 132)
Rating: 2515
(World No. 6)

The World Rapid Chess Championship 2021 was the 2021 edition of the annual World Rapid Chess Championship held by FIDE to determine the world champion in chess played under rapid time controls. Since 2012, FIDE has held the World Rapid and Blitz Championships at a joint tournament. Originally planned to be held in Nur-Sultan, Kazakhstan, new coronavirus restrictions introduced by the Kazakh government prompted FIDE to change the location of the tournament to Warsaw, Poland.

The event took place at the Stadion Narodowy in Warsaw between 26 and 28 December 2021, using a Swiss-system with 13 rounds for the open tournament and 11 rounds for the women's tournament. Players who were eligible to participate in the open tournament must have either been rated at least 2550 Elo in a FIDE rating list during 2021, or were a reigning national champion. The time control for the tournament was 15+10, meaning each player initially started with 15 minutes and gained 10 seconds increment with each move.