2018 L'Open 35 de Saint-Malo – Doubles

Diāna Marcinkēviča and Daniela Seguel were the defending champions, but Seguel chose not to participate.

Marcinkēviča partnered alongside Alexandra Cadanțu, but lost in the final to Cristina Bucșa and María Fernanda Herazo, 4–6, 6–1, [10–8].

Seeds
• # 🇷🇴 Alexandra Cadanțu / Diāna Marcinkēviča (final)

• # 🇷🇴 Irina Bara / 🇷🇺 Valentyna Ivakhnenko (semifinals, withdrew)

• # Verónica Cepede Royg / 🇷🇺 Irina Khromacheva (semifinals)

• # 🇪🇸 Cristina Bucșa / 🇨🇴 María Fernanda Herazo (champions)