2024 Open Quimper Bretagne – Singles

Grégoire Barrère was the defending champion but lost in the first round to Otto Virtanen.

Pierre-Hugues Herbert won the title after defeating Duje Ajduković 6–3, 6–2 in the final.

Seeds
• # 🇫🇷 Grégoire Barrère (first round)

• # 🇫🇷 Arthur Rinderknech (quarterfinals)

• # 🇫🇷 Hugo Gaston (withdrew)

• # 🇫🇷 Constant Lestienne (first round)

• # 🇺🇸 Michael Mmoh (first round)

• # 🇺🇸 Maxime Cressy (quarterfinals)

• # 🇨🇿 Vít Kopřiva (second round)

• # 🇨🇦 Gabriel Diallo (second round)

• # Duje Ajduković (final)