Denis Istomin

Denis Istomin
Country (sports) Uzbekistan
ResidenceTashkent, Uzbekistan
Born (1986-09-07) 7 September 1986
Orenburg, Russian SFSR, Soviet Union
Height1.88 m (6 ft 2 in)
Turned pro2004
PlaysRight-handed (two-handed backhand)
CoachKlaudiya Istomina
Prize moneyUS$6,333,868
Singles
Career record230–267
Career titles2
Highest rankingNo. 33 (13 August 2012)
Grand Slam singles results
Australian Open4R (2017)
French Open2R (2009, 2010, 2012, 2013, 2014, 2017)
Wimbledon4R (2012)
US Open4R (2013)
Other tournaments
Olympic Games3R (2012)
Doubles
Career record94–131
Career titles3
Highest rankingNo. 59 (8 October 2012)
Current rankingNo. 428 (7 April 2025)
Grand Slam doubles results
Australian Open2R (2012, 2015)
French Open3R (2011, 2012)
Wimbledon3R (2012)
US Open2R (2011, 2015)
Team competitions
Davis Cup52–34 (Sin. 35–18, Dbs. 17–16)
Medal record
Men's tennis
Representing  Uzbekistan
Asian Games
2018 Jakarta-PalembangSingles
2010 GuangzhouSingles
2010 GuangzhouTeam
2014 IncheonTeam
Last updated on: 15 April 2025.

Denis Olegovich Istomin (born 7 September 1986) is an Uzbekistani professional tennis player. He won two singles titles (at the 2015 Aegon Open Nottingham and 2017 Chengdu Open) and achieved a career-high singles ranking of world No. 33 in August 2012. In January 2017, he defeated defending champion Novak Djokovic in the second round of the Australian Open.