2023 IBG Prague Open – Singles

Oleksii Krutykh was the defending champion but chose not to defend his title.

Rudolf Molleker won the title after defeating Gabriel Debru 6–2, 6–2 in the final.

Seeds
• # 🇦🇹 Lukas Neumayer (first round)

• # 🇮🇹 Francesco Maestrelli (first round)

• # 🇮🇹 Luciano Darderi (quarterfinals)

• # 🇩🇪 Rudolf Molleker (champion)

• # João Sousa (semifinals)

• # 🇩🇪 Henri Squire (first round)

• # 🇫🇷 Mathias Bourgue (first round)

• # Valentin Vacherot (semifinals)