The 2021 WTA Poland Open (also known as the BNP Paribas Poland Open for sponsorship purposes) was a women's tennis tournament played on outdoor clay courts.

It was the first edition of the WTA Poland Open, and part of the WTA 250 series of the 2021 WTA Tour.

It was held at the Arka Tennis Club in Gdynia, Poland, from 19 July until 25 July 2021.

Unseeded Maryna Zanevska won the singles title.

[1] The following players received wildcards into the main draw: The following player received entry 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: