The 2023 Challenger Coquimbo was a professional tennis tournament played on clay courts. It was part of the 2023 ATP Challenger Tour. It took place in Coquimbo, Chile between 1 and 6 May 2023.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Dominican Republic | Nick Hardt | 220 | 1 | |
 Brazil | Thiago Seyboth Wild | 226 | 2 | |
 Argentina | Santiago Rodríguez Taverna | 233 | 3 | |
| Argentina | Francisco Comesaña | 249 | 4 | |
| Argentina | Hernán Casanova | 251 | 5 | |
| Argentina | Juan Bautista Torres | 259 | 6 | |
| Argentina | Román Andrés Burruchaga | 262 | 7 | |
| Brazil | João Lucas Reis da Silva | 282 | 8 |
The following players received wildcards into the singles main draw:
Thiago Seyboth WildThe following player received entry into the singles main draw as an alternate:
Leonardo AboianThe following players received entry from the qualifying draw:
Mateus Alves Alex Barrena Santiago de la Fuente
Arklon Huertas del Pino Conner Huertas del Pino Ignacio MonzónSee main article: 2023 Challenger Coquimbo – Singles.
Matheus Pucinelli de Almeida def. João Lucas Reis da Silva 7–6(7–1), 6–7(4–7), 6–4.See main article: 2023 Challenger Coquimbo – Doubles.
Valerio Aboian / 
Murkel Dellien def. Tomás Farjat / 
Facundo Juárez 7–6(7–4), 6–0.