2017 Lisboa Belém Open – Singles

This was the first edition of the tournament.

Oscar Otte won the title after defeating Taro Daniel 4–6, 6–1, 6–3 in the final.

Seeds
• # 🇧🇦 Damir Džumhur (first round)

• # 🇨🇿 Adam Pavlásek (first round)

• # 🇯🇵 Taro Daniel (final)

• # 🇨🇴 Santiago Giraldo (first round)

• # Gastão Elias (first round)

• # 🇪🇸 Roberto Carballés Baena (second round)

• # Pedro Sousa (quarterfinals)

• # 🇪🇸 Rubén Ramírez Hidalgo (first round)