2018 Milex Open – Doubles

Juan Ignacio Londero and Luis David Martínez were the defending champions but only Londero chose to defend his title, partnering Tomás Lipovšek Puches. Londero lost in the semifinals to Leander Paes and Miguel Ángel Reyes-Varela.

Paes and Reyes-Varela won the title after defeating Ariel Behar and Roberto Quiroz 4–6, 6–3, [10–5] in the final.

Seeds
• # Pablo Cuevas / 🇪🇸 David Marrero (quarterfinals)

• # 🇮🇳 Leander Paes / 🇲🇽 Miguel Ángel Reyes-Varela (champions)

• # Marcelo Arévalo / 🇮🇳 Jeevan Nedunchezhiyan (quarterfinals)

• # 🇪🇨 Gonzalo Escobar / 🇧🇷 Fernando Romboli (quarterfinals)