The 2021 Zubr Cup was a professional women's tennis tournament played on outdoor clay courts.

It was the seventeenth edition of the tournament which was part of the 2021 ITF Women's World Tennis Tour.

It took place in Přerov, Czech Republic between 23 and 29 August 2021.

[1] The following players received wildcards into the singles main draw: The following player received entry using a protected ranking: The following player received entry as a special exempt: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: