See main article: 2015 Engie Open Nantes Atlantique.
Lyudmyla Kichenok and Nadiia Kichenok were the defending champions, but chose to participate at the WTA Elite Trophy instead.
Lenka Kunčíková and Karolína Stuchlá won the title, defeating Kateřina Siniaková and Renata Voráčová in an all-Czech final, 6–4, 6–2.