2023 in chess

The main events in the 2023 chess calendar are the World Chess Championship 2023 and Women's World Chess Championship 2023. The top three finishers from the Chess World Cup 2023, the winner and runner-up of the FIDE Grand Swiss Tournament 2023 and the winner of the FIDE Circuit 2023 will qualify for the Candidates Tournament 2024. FIDE Circuit is the new path to qualify for the Candidates Tournament. One player who would achieve the highest results during 2023 in eligible tournaments gets the spot in the Candidates. The final score is calculated as the sum of the player's five highest scores.

2023 tournaments
FIDE World Championship cycle events are highlighted in bold.

Deaths

 * 7 February — Luc Winants
 * 14 March — Nukhim Rashkovsky
 * 1 April — Włodzimierz Schmidt
 * 11 May — András Adorján
 * 11 May — Sue Maroroa
 * 5 June — Vadim Malakhatko
 * 9 August — Aleksandar Matanović
 * 17 December — Nikola Padevsky