2021 Sparkassen ATP Challenger – Doubles

Andre Begemann and Albano Olivetti were the defending champions but chose not to defend their title.

Antonio Šančić and Tristan-Samuel Weissborn won the title after defeating Alexander Erler and Lucas Miedler 7–6(10–8), 4–6, [10–8] in the final.

Seeds
• # Ivan Sabanov / Matej Sabanov (semifinals)

• # Antonio Šančić / 🇦🇹 Tristan-Samuel Weissborn (champions)

• # 🇦🇹 Alexander Erler / 🇦🇹 Lucas Miedler (final)

• # 🇪🇨 Diego Hidalgo / 🇪🇨 Roberto Quiroz (first round)