2017 Open de Rennes – Singles

Malek Jaziri was the defending champion but chose not to defend his title.

Uladzimir Ignatik won the title after defeating Andrey Rublev 6–7(6–8), 6–3, 7–6(7–5) in the final.

Seeds
• # 🇫🇷 Jérémy Chardy (first round)

• # 🇫🇷 Paul-Henri Mathieu (quarterfinals)

• # 🇸🇰 Jozef Kovalík (second round)

• # 🇺🇦 Sergiy Stakhovsky (second round)

• # 🇦🇷 Guido Andreozzi (second round)

• # 🇨🇿 Lukáš Rosol (second round)

• # 🇷🇺 Evgeny Donskoy (first round, retired)

• # 🇩🇪 Tobias Kamke (second round)