2023 Challenger Ciudad de Guayaquil

The 2023 Challenger Ciudad de Guayaquil was a professional tennis tournament played on clay courts. It was the 19th edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Guayaquil, Ecuador between 30 October and 5 November 2023.

Seeds

 * 1 Rankings are as of 23 October 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇪🇨 Andrés Andrade
 * 🇨🇴 Daniel Elahi Galán
 * 🇪🇨 Álvaro Guillén Meza

The following players received entry from the qualifying draw:
 * 🇵🇪 Gonzalo Bueno
 * 🇰🇷 Gerard Campana Lee
 * Max Houkes
 * 🇨🇴 Nicolás Mejía
 * 🇪🇸 Carlos Taberner
 * 🇦🇷 Juan Bautista Torres

The following player received entry as a lucky loser:
 * 🇦🇷 Alex Barrena

Singles

 * Alejandro Tabilo def. 🇨🇴 Daniel Elahi Galán 6–2, 6–2.

Doubles

 * 🇵🇪 Arklon Huertas del Pino / 🇵🇪 Conner Huertas del Pino def. Luca Margaroli / 🇦🇷 Santiago Rodríguez Taverna 6–3, 6–1.