2023 RD Open

The 2023 RD Open was a professional tennis tournament played on green clay courts. It was the seventh edition of the tournament which was part of the 2023 ATP Challenger Tour. It took place in Santo Domingo, Dominican Republic between 7 and 13 August 2023.

Seeds

 * 1 Rankings were as of 31 July 2023.

Other entrants
The following players received wildcards into the singles main draw:
 * 🇩🇴 Peter Bertran
 * 🇩🇴 Roberto Cid Subervi
 * Gonzalo Lama

The following player received entry into the singles main draw using a protected ranking:
 * 🇧🇷 Pedro Sakamoto

The following players received entry from the qualifying draw:
 * 🇧🇷 Mateus Alves
 * 🇦🇷 Ignacio Monzón
 * 🇵🇪 Jorge Panta
 * Justin Roberts
 * 🇺🇸 Kyle Seelig
 * 🇺🇸 Joshua Sheehy

Singles

 * 🇦🇷 Genaro Alberto Olivieri def. 🇦🇷 Marco Trungelliti 7–5, 2–6, 6–4.

Doubles

 * 🇧🇷 Pedro Boscardin Dias / 🇧🇷 Gustavo Heide def. 🇪🇨 Diego Hidalgo / 🇨🇴 Cristian Rodríguez 6–4, 7–5.