2021 Bratislava Open
The 2021 Bratislava Open was a professional tennis tournament played on clay courts. It was the 2nd edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Bratislava, Slovakia between 7 and 13 June 2021.
Singles main-draw entrants
Seeds
1 Rankings are as of 31 May 2021.Other entrants
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 player received entry as a lucky loser: