2021 Garden Open – Singles

Henri Laaksonen was the defending champion but chose not to defend his title.

Andrea Pellegrino won the title after defeating Hugo Gaston 3–6, 6–2, 6–1 in the final.

Seeds
• # 🇫🇷 Grégoire Barrère (first round)

• # 🇧🇴 Hugo Dellien (first round)

• # 🇮🇹 Paolo Lorenzi (second round)

• # 🇦🇹 Sebastian Ofner (quarterfinals)

• # 🇫🇷 Hugo Gaston (final)

• # 🇵🇪 Juan Pablo Varillas (semifinals)

• # 🇮🇹 Lorenzo Giustino (quarterfinals)

• # 🇨🇦 Steven Diez (first round)