2018 Barcelona Open Banco Sabadell – Doubles

Florin Mergea and Aisam-ul-Haq Qureshi were the defending champions, but Mergea chose to compete in Budapest instead. Qureshi played alongside Jean-Julien Rojer, but lost in the final to Feliciano López and Marc López, 6–7(5–7), 4–6.

Feliciano and Marc López became the first all-spanish team in winning the tournament since 1997.

Seeds
• # 🇵🇱 Łukasz Kubot / 🇧🇷 Marcelo Melo (quarterfinals)

• # 🇫🇮 Henri Kontinen / 🇦🇺 John Peers (first round)

• # 🇦🇹 Oliver Marach / Mate Pavić (quarterfinals, withdrew)

• # 🇺🇸 Bob Bryan / 🇺🇸 Mike Bryan (withdrew due to a low back injury on Mike)

Seeds
• # 🇺🇸 James Cerretani / 🇪🇸 Guillermo García López (first round, lucky losers)

• # 🇦🇷 Federico Delbonis / 🇦🇷 Leonardo Mayer (first round)

Qualifiers

 * 1) 🇪🇸 Jaume Munar / 🇪🇸 Tommy Robredo

Lucky losers
• # 🇺🇸 James Cerretani / 🇪🇸 Guillermo García López

• # Nicolás Jarry / 🇦🇷 Guido Pella