2021 Moneta Czech Open
The 2021 Moneta Czech Open was a professional tennis tournament played on clay courts. It was the 28th edition of the tournament which was part of the 2021 ATP Challenger Tour. It took place in Prostějov, Czech Republic between 14 and 20 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 player received entry into the singles main draw as an alternate:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers: