The 2021 Qatar Open (also known as 2021 Qatar ExxonMobil Open for sponsorship reasons) was the 29th edition of the Qatar Open, a men's tennis tournament which is played on outdoor hard courts. It was part of the ATP Tour 250 of the 2021 ATP Tour. It took place at the Khalifa International Tennis and Squash Complex in Doha, Qatar from 8 to 14 March 2021.[3] The tournament was awarded the Tournament of the Year award in the 250 category from the 2019 ATP Awards for the third time in five years.[4]
Nikoloz Basilashvili defeated 
Roberto Bautista Agut, 7–6(7–5), 6–2
Aslan Karatsev / Andrey Rublev defeated 
Marcus Daniell / 
Philipp Oswald, 7–5, 6–4.The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following player received entry as a lucky loser:
Kevin Anderson → replaced by Nikoloz Basilashvili Pablo Carreño Busta → replaced by 
Richard Gasquet
Borna Ćorić → replaced by 
Norbert Gombos
Hubert Hurkacz → replaced by 
Alexander Bublik Gaël Monfils → replaced by .svg/1280px-Flag_of_Canada_(Pantone).svg.png){kind=small}
Vasek PospisilThe following pairs received wildcards into the doubles main draw:
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