2017 Challenger La Manche – Singles

Jordan Thompson was the defending champion but chose not to defend his title.

Mathias Bourgue won the title after defeating Maximilian Marterer 6–3, 7–6(7–3) in the final.

Seeds
• # 🇫🇷 Jérémy Chardy (first round)

• # 🇺🇦 Illya Marchenko (first round)

• # 🇫🇷 Julien Benneteau (semifinals)

• # 🇸🇰 Norbert Gombos (quarterfinals)

• # 🇰🇷 Lee Duck-hee (second round)

• # 🇩🇪 Peter Gojowczyk (quarterfinals)

• # 🇮🇹 Luca Vanni (second round)

• # 🇧🇾 Uladzimir Ignatik (first round)