2021 Garden Open – Doubles

Philipp Oswald and Filip Polášek were the defending champions but chose not to defend their title.

Sadio Doumbia and Fabien Reboul won the title after defeating Paolo Lorenzi and Juan Pablo Varillas 7–6(7–5), 7–5 in the final.

Seeds
• # 🇸🇪 André Göransson / 🇺🇸 Nicholas Monroe (first round)

• # 🇺🇸 Nathaniel Lammons / 🇺🇸 Jackson Withrow (first round)

• # 🇬🇧 Lloyd Glasspool / 🇫🇮 Harri Heliövaara (quarterfinals)

• # 🇺🇦 Denys Molchanov / 🇰🇿 Aleksandr Nedovyesov (first round)