2023 Polish Open – Singles

Dayana Yastremska won the singles title at the 2023 Polish Open, defeating Greet Minnen in the final, 2–6, 6-1, 6–3.

Kateřina Siniaková was the reigning champion, but chose to participate in the Canadian Open instead.

Seeds
• # 🇩🇪 Jule Niemeier (first round)

• # 🇮🇹 Lucrezia Stefanini (first round)

• # 🇨🇿 Tereza Martincová (quarterfinals)

• # 🇧🇪 Greet Minnen (final)

• # 🇸🇰 Viktória Hrunčáková (first round)

• # 🇷🇴 Jaqueline Cristian (withdrew)

• # Nao Hibino (withdrew)

• # 🇺🇦 Dayana Yastremska (champion)

• # 🇩🇪 Eva Lys (quarterfinals)

Seeds
• # 🇩🇪 Noma Noha Akugue (qualified)

• # 🇨🇿 Gabriela Knutson (qualified)

• # 🇵🇱 Katarzyna Kawa (qualifying competition, lucky loser)

• # 🇬🇧 Naiktha Bains (qualifying competition, lucky loser)

• # 🇨🇿 Anna Sisková (qualified)

• # 🇹🇭 Peangtarn Plipuech (first round)

• # 🇩🇪 Sabine Lisicki (qualifying competition)

• # 🇵🇱 Urszula Radwańska (first round)

Qualifiers
• # 🇩🇪 Noma Noha Akugue

• # 🇨🇿 Gabriela Knutson

• # 🇹🇭 Luksika Kumkhum

• # 🇨🇿 Anna Sisková

Lucky losers
• # 🇬🇧 Naiktha Bains

• # 🇵🇱 Katarzyna Kawa