2023 JC Ferrero Challenger Open – Singles

Lukáš Klein was the defending champion but lost in the second round to Maximilian Marterer.

Constant Lestienne won the title after defeating Hugo Grenier 6–7(10–12), 6–2, 6–4 in the final.

Seeds
• # 🇫🇷 Constant Lestienne (champion)

• # 🇸🇰 Alex Molčan (first round)

• # 🇪🇸 Pedro Martínez (second round)

• # 🇫🇷 Benoît Paire (second round)

• # 🇫🇷 Arthur Cazaux (second round)

• # 🇩🇪 Maximilian Marterer (semifinals)

• # 🇦🇷 Thiago Agustín Tirante (first round)

• # 🇮🇹 Mattia Bellucci (second round)