2021 Zadar Open – Doubles

This was the first edition of the tournament.

Blaž Kavčič and Blaž Rola won the title after defeating Lukáš Klein and Alex Molčan 2–6, 6–2, [10–3] in the final.

Seeds
• # 🇰🇿 Andrey Golubev / 🇰🇿 Aleksandr Nedovyesov (semifinals)

• # 🇲🇽 Miguel Ángel Reyes-Varela / 🇧🇷 Fernando Romboli (first round)

• # 🇷🇺 Teymuraz Gabashvili / 🇨🇿 Zdeněk Kolář (first round)

• # 🇵🇪 Sergio Galdós / 🇧🇷 Rafael Matos (withdrew)