2018 Open de Rennes – Doubles

Evgeny Donskoy and Mikhail Elgin were the defending champions but chose not to defend their title.

Sander Gillé and Joran Vliegen won the title after defeating Sander Arends and Antonio Šančić 6–3, 6–7(1–7), [10–7] in the final.

Seeds
• # 🇫🇷 Jonathan Eysseric / 🇫🇷 Hugo Nys (semifinals)

• # Sander Arends / Antonio Šančić (final)

• # Romain Arneodo / 🇦🇹 Tristan-Samuel Weissborn (quarterfinals)

• # 🇧🇪 Sander Gillé / 🇧🇪 Joran Vliegen (champions)