2013 Guimarães Open – Singles

This was the first edition of the event.

João Sousa won the title, defeating Marius Copil 6–3, 6–0 in the final.

Seeds
• # João Sousa (champion)

• # 🇩🇪 Benjamin Becker (second round)

• # 🇯🇵 Go Soeda (first round)

• # 🇷🇴 Marius Copil (final)

• # 🇪🇸 Daniel Muñoz de la Nava (quarterfinals, retired)

• # 🇮🇹 Matteo Viola (quarterfinals)

• # 🇮🇹 Flavio Cipolla (semifinals)

• # 🇫🇷 Josselin Ouanna (second round)