2023 Open Sopra Steria de Lyon – Singles

Corentin Moutet was the defending champion but chose not to defend his title.

Felipe Meligeni Alves won the title after defeating Alexander Ritschard 6–4, 0–6, 7–6(9–7) in the final.

Seeds
• # 🇫🇷 Quentin Halys (first round)

• # 🇪🇸 Pedro Martínez (first round)

• # 🇦🇷 Facundo Díaz Acosta (first round, retired)

• # 🇰🇿 Timofey Skatov (first round)

• # 🇫🇷 Benoît Paire (quarterfinals)

• # 🇯🇵 Kaichi Uchida (first round, retired)

• # 🇫🇷 Geoffrey Blancaneaux (withdrew)

• # 🇧🇷 Felipe Meligeni Alves (champion)