2018 Croatia Open Umag – Doubles

Guillermo Durán and Andrés Molteni were the defending champions, but Durán chose not to participate and Molteni chose to compete in Båstad instead.

Robin Haase and Matwé Middelkoop won the title, defeating Roman Jebavý and Jiří Veselý in the final, 6–4, 6–4.

Seeds
• # 🇬🇧 Dominic Inglot / Franko Škugor (semifinals)

• # Robin Haase /  Matwé Middelkoop (champions)

• # Antonio Šančić / 🇧🇾 Andrei Vasilevski (first round)

• # 🇫🇷 Jonathan Eysseric / 🇫🇷 Hugo Nys (first round)