2017 Tampere Open – Men's singles

Kimmer Coppejans was the defending champion but lost in the first round to Tallon Griekspoor.

Calvin Hemery won the title after defeating Pedro Sousa 6–3, 6–4 in the final.

Seeds
• # Pedro Sousa (final)

• # 🇦🇹 Sebastian Ofner (quarterfinals)

• # 🇪🇸 Guillermo García López (second round)

• # 🇪🇸 Rubén Ramírez Hidalgo (second round)

• # 🇧🇪 Kimmer Coppejans (first round)

• # 🇰🇿 Dmitry Popko (quarterfinals)

• # 🇧🇪 Joris De Loore (withdrew)

• # 🇫🇷 Calvin Hemery (champion)

• # 🇫🇷 Tristan Lamasine (first round)