2017 Guzzini Challenger – Singles

Illya Marchenko was the defending champion but chose not to defend his title.

Viktor Galović won the title after defeating Mirza Bašić 7–6(7–3), 6–4 in the final.

Seeds
• # 🇮🇹 Luca Vanni (semifinals)

• # 🇫🇷 Quentin Halys (quarterfinals)

• # 🇪🇸 Adrián Menéndez Maceiras (quarterfinals)

• # 🇫🇷 Kenny de Schepper (second round)

• # 🇧🇦 Mirza Bašić (final)

• # 🇧🇾 Egor Gerasimov (second round)

• # 🇮🇹 Salvatore Caruso (semifinals)

• # 🇧🇦 Aldin Šetkić (first round)