2023 Chile Open – Singles

Nicolás Jarry defeated Tomás Martín Etcheverry in the final, 6–7(5–7), 7–6(7–5), 6–2 to win the singles tennis title at the 2023 Chile Open. This was Jarry's first ATP title since 2019.

Pedro Martínez was the defending champion, but lost in the first round to Yannick Hanfmann.

Seeds
The top four seeds received a bye into the second round. • #🇮🇹 Lorenzo Musetti (second round)

• #🇦🇷 Francisco Cerúndolo (second round)

• #🇦🇷 Sebastián Báez (semifinals)

• #🇦🇷 Diego Schwartzman (second round)

• #🇪🇸 Albert Ramos Viñolas (first round)

• #🇷🇸 Laslo Đere (quarterfinals)

• #🇦🇷 Pedro Cachin (first round)

• #🇪🇸 Bernabé Zapata Miralles (withdrew)

Seeds
• # 🇫🇷 Hugo Gaston (first round)

• # 🇦🇷 Juan Manuel Cerúndolo (qualified)

• # 🇦🇷 Camilo Ugo Carabelli (qualified)

• # 🇩🇪 Yannick Hanfmann (qualified)

• # 🇸🇰 Jozef Kovalík (first round)

• # 🇧🇷 Felipe Meligeni Alves (first round)

• # 🇮🇹 Franco Agamenone (first round)

• # 🇮🇹 Riccardo Bonadio (qualified)

Qualifiers
• # 🇮🇹 Riccardo Bonadio

• # 🇦🇷 Juan Manuel Cerúndolo

• # 🇦🇷 Camilo Ugo Carabelli

• # 🇩🇪 Yannick Hanfmann

Lucky loser

 * 1) 🇪🇸 Carlos Taberner