2019 Las Vegas Challenger – Doubles

Marcelo Arévalo and Roberto Maytín were the defending champions but chose to defend their title with different partners. Arévalo partnered Miguel Ángel Reyes-Varela but lost in the first round to Ruben Gonzales and Ruan Roelofse. Maytín partnered Robert Galloway but lost in the first round to Nathan Pasha and Max Schnur.

Gonzales and Roelofse won the title after defeating Pasha and Schnur 2–6, 6–3, [10–8] in the final.

Seeds
• # Marcelo Arévalo / 🇲🇽 Miguel Ángel Reyes-Varela (first round)

• # 🇺🇸 Robert Galloway / 🇻🇪 Roberto Maytín (first round)

• # 🇺🇸 Evan King / 🇺🇸 Hunter Reese (semifinals)

• # 🇪🇨 Gonzalo Escobar / 🇪🇨 Roberto Quiroz (quarterfinals)