2019 Poznań Open – Singles

Hubert Hurkacz was the defending champion but lost in the semifinals to Rudolf Molleker.

Tommy Robredo won the title after defeating Molleker 5–7, 6–4, 6–1 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇵🇱 Hubert Hurkacz (semifinals)

• # 🇪🇸 Roberto Carballés Baena (second round, retired)

• # 🇦🇹 Dennis Novak (third round)

• # 🇸🇪 Elias Ymer (second round)

• # Pedro Sousa (quarterfinals)

• # 🇪🇸 Pedro Martínez (second round)

• # 🇦🇹 Sebastian Ofner (third round)

• # 🇮🇹 Gianluca Mager (quarterfinals)

• # 🇩🇪 Oscar Otte (third round)

• # 🇫🇷 Quentin Halys (quarterfinals)

• # João Domingues (third round)

• # 🇮🇹 Filippo Baldi (third round)

• # 🇮🇹 Alessandro Giannessi (quarterfinals)

• # 🇪🇸 Enrique López Pérez (third round)

• # 🇩🇪 Rudolf Molleker (final)

• # Blaž Rola (second round)