The 2018 Engie Open de Biarritz – Doubles was the doubles event of the Open de Biarritz, a professional women's tennis tournament played on outdoor clay courts.

Irina Bara and Mihaela Buzărnescu were the defending champions, but Buzărnescu chose not to participate.

Bara partnered with Valentyna Ivakhnenko and successfully defended her title, defeating Ysaline Bonaventure and Hélène Scholsen in the final in straight sets, 6–4, 6–1.

Seeds

Draw

Draw

References Main Draw