2021 WTA Poland Open – Singles

Maryna Zanevska won her maiden WTA Tour singles title, defeating Kristína Kučová in the final, 6–4, 7–6(7–4).

Seeds
• # 🇰🇿 Yulia Putintseva (withdrew)

• # Tamara Zidanšek (withdrew)

• # 🇷🇴 Irina-Camelia Begu (second round)

• # 🇨🇿 Tereza Martincová (withdrew)

• # 🇷🇺 Anna Blinkova (first round)

• # 🇧🇾 Aliaksandra Sasnovich (second round)

• # 🇷🇺 Varvara Gracheva (first round)

• # 🇺🇦 Anhelina Kalinina (withdrew)

• # 🇪🇸 Nuria Párrizas Díaz (quarterfinals)

• # 🇷🇴 Irina Bara (second round)

• # 🇧🇾 Olga Govortsova (first round)

Seeds
• # 🇷🇺 Marina Melnikova (qualifying competition, lucky loser)

• # 🇧🇪 Maryna Zanevska (Received special exempt to main draw)

• # 🇷🇴 Gabriela Talabă (first round)

• # 🇺🇦 Kateryna Bondarenko (qualified)

• # Ekaterine Gorgodze (qualified)

• # Tereza Mrdeža (qualifying competition, lucky loser)

• # 🇭🇺 Anna Bondár (qualified)

• # 🇺🇸 Jamie Loeb (first round, lucky loser)

Qualifiers
• # 🇭🇺 Anna Bondár

• # Ekaterine Gorgodze

• # 🇮🇹 Federica Di Sarra

• # 🇺🇦 Kateryna Bondarenko

Lucky losers
• # 🇷🇺 Marina Melnikova

• # 🇷🇺 Amina Anshba

• # Tereza Mrdeža

• # 🇵🇱 Weronika Falkowska

• # 🇺🇸 Jamie Loeb

• # 🇷🇺 Anastasia Zakharova