The 2021 Dubai Tennis Championships (also known as the Dubai Duty Free Tennis Championships for sponsorship reasons) was an ATP 500 event on the 2021 ATP Tour and a WTA 1000 tournament on the 2021 WTA Tour. Both events were originally scheduled for February 15 to 21 and February 22 to 28 for women's and men's tournaments, respectively. They were rescheduled to March 7 to 13 and March 14 to 20 due to the Australian Open reschedule and were held at the Aviation Club Tennis Centre in Dubai, United Arab Emirates.
This was Karatsev's first ATP Tour singles title.
The following players received wildcards into the singles main draw:
The following player received entry using as a special exempt:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
The following pairs received wildcards into the doubles main draw:
The following pair received entry from the qualifying draw:
The following players received wildcards into the singles main draw:
The following player received entry into the singles main draw using a protected ranking:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
The following pairs received a wildcard into the doubles main draw:
The following pairs received entry into the doubles main draw using protected rankings: