| Comp1: | Magnus Carlsen |
| Comp2: | Valentina Gunina |
| Comp1 Link: | Magnus Carlsen |
| Comp2 Link: | Valentina Gunina |
| Title1: | World Blitz Champion |
| Title2: | Women's World Blitz Champion |
| Flag1: | NOR |
| Flag2: | FIDE |
| Dob1: | 30 November 1990 |
| Age1: | 33 years old |
| Dob2: | 4 February 1989 |
| Age2: | 34 years old |
| Prev: | 2022 |
| Prev Link: | World Blitz Chess Championship 2022 |
| Next: | 2024 |
| Next Link: | World Blitz Chess Championship 2024 |
| Score1: | 16/21 |
| Score2: | 14/17 |
The 2023 World Blitz Chess Championship was the 2023 edition of the annual chess tournament held by FIDE to determine the world champion in chess played under blitz time controls. Since 2012, FIDE has held the World Rapid and Blitz Championships at a joint tournament. The tournament was held in Samarkand, Uzbekistan from 26 to 30 December 2023,[1] using a Swiss-system with 21 rounds for the open tournament and 17 rounds for the women's tournament. Players eligible to participate were to either be rated at least 2550 Elo (2250 Elo for women) in a FIDE rating list during 2023, or be a reigning national champion.[1] Time controls for the tournament were 3+2, meaning each player initially starts with 3 minutes and gains 2 additional seconds following each move.
The prize fund for both the open and women's tournament is shown below. In case of a tie (except for first place) all prize money is shared between the players. Players outside the brackets do not receive any prize money.[1] All amounts are in United States dollars.
Open tournament:
Total: $350,000
Women's tournament:
Total: $150,000
For players who finish on the same score, final position was determined by the following tie-breaks, in order:
If two or more players were tied for any position other than first, the above-mentioned tiebreak system decided the ranking of the tied players.
If two or more players were tied for first, the top two players who finished the highest on the above-mentioned tiebreaks would have played a two-game mini match with the time control of 3+2 (with colours of the first game drawn) to decide the winner. If the score is tied 1-1, the players continue to play single 3+2 games until one of the players has won one game (the player who finished highest on the above-mentioned tiebreaks shall have the white pieces for the first game and the colours will alternate from the next game).