2021 Ladies Open Lausanne – Doubles

Anastasia Potapova and Yana Sizikova were the defending champions, but they decided not to participate this year.

Susan Bandecchi and Simona Waltert won the title, defeating Ulrikke Eikeri and Valentini Grammatikopoulou in the final, 6–3, 6–7(3–7), [10–5]. This was this first WTA Tour doubles title won by both Bandecchi and Waltert.

Seeds
• # 🇷🇺 Anna Blinkova / 🇩🇪 Anna-Lena Friedsam (withdrew)

• # Jil Teichmann / Tamara Zidanšek (first round, withdrew)

• # 🇯🇵 Eri Hozumi / 🇨🇳 Zhang Shuai (semifinals)

• # 🇵🇱 Katarzyna Piter / Arantxa Rus (first round, withdrew)