2021 TK Sparta Prague Open – Doubles

Tomasz Bednarek and Nikola Mektić were the defending champions but chose not to defend their title.

Jonáš Forejtek and Michael Vrbenský won the title after defeating Evgeny Karlovskiy and Evgenii Tiurnev 6–1, 6–4 in the final.

Seeds
• # 🇮🇳 Sriram Balaji / 🇮🇳 Arjun Kadhe (first round)

• # Gonçalo Oliveira / Nino Serdarušić (semifinals)

• # 🇪🇸 Carlos Gómez-Herrera / Mark Vervoort (quarterfinals)

• # 🇦🇷 Facundo Mena / 🇦🇷 Camilo Ugo Carabelli (quarterfinals)