Rustam Kasimdzhanov

Rustam Kasimdzhanov
Kasimdzhanov in 2023
Full nameRustam Qosimjonov
CountryUzbekistan
Born (1979-12-05) 5 December 1979
Tashkent, Uzbek SSR, Soviet Union
TitleGrandmaster (1997)
World Champion200405 (FIDE)
FIDE rating2675 (June 2025)
Peak rating2715 (May 2015)
RankingNo. 47 (June 2025)
Peak rankingNo. 11 (October 2001)

Rustam Kasimdzhanov (born 5 December 1979) is an Uzbek chess grandmaster and former FIDE World Champion (2004-05). He was Asian champion in 1998.

In addition to his tournament play, Kasimdzhanov was a longtime second to Viswanathan Anand, including during the 2008, 2010 and 2012 World Championship matches. He has also trained World Championship candidates Sergey Karjakin and Fabiano Caruana.