2021 Zagreb Ladies Open – Doubles

Silvia Njirić and Dejana Radanović were the defending champions but chose not to participate.

Barbara Haas and Katarzyna Kawa won the title, defeating Andreea Prisăcariu and Nika Radišić in the final, 7–6(7–1), 5–7, [10–6].

Seeds
• # Xenia Knoll / 🇷🇴 Elena-Gabriela Ruse (quarterfinals, retired)

• # 🇷🇺 Sofya Lansere / 🇷🇺 Kamilla Rakhimova (semifinals)

• # 🇦🇹 Barbara Haas / 🇵🇱 Katarzyna Kawa (champions)

• # 🇷🇺 Vitalia Diatchenko / 🇷🇺 Natela Dzalamidze (first round)