2018 Los Cabos Open – Doubles

Juan Sebastián Cabal and Treat Huey were the defending champions, but Huey chose not to participate and Cabal chose to compete in Washington instead.

Marcelo Arévalo and Miguel Ángel Reyes-Varela won the title, defeating Taylor Fritz and Thanasi Kokkinakis in the final, 6–4, 6–4.

Seeds
• # 🇲🇽 Santiago González / 🇪🇸 David Marrero (first round)

• # 🇮🇱 Jonathan Erlich / 🇬🇧 Joe Salisbury (quarterfinals)

• # Marcelo Arévalo / 🇲🇽 Miguel Ángel Reyes-Varela (champions)

• # Romain Arneodo / 🇺🇸 Nicholas Monroe (semifinals)