2023 Challenger Coquimbo – Singles

Juan Manuel Cerúndolo was the defending champion but chose not to defend his title.

Matheus Pucinelli de Almeida won the title after defeating João Lucas Reis da Silva 7–6(7–1), 6–7(4–7), 6–4 in the final.

Seeds
• # 🇩🇴 Nick Hardt (quarterfinals)

• # 🇧🇷 Thiago Seyboth Wild (semifinals)

• # 🇦🇷 Santiago Rodríguez Taverna (quarterfinals)

• # 🇦🇷 Francisco Comesaña (second round)

• # 🇦🇷 Hernán Casanova (first round)

• # 🇦🇷 Juan Bautista Torres (first round)

• # 🇦🇷 Román Andrés Burruchaga (semifinals)

• # 🇧🇷 João Lucas Reis da Silva (final)