2017 Lima Challenger – Singles

Christian Garín was the defending champion but lost in the second round to Gastão Elias.

Gerald Melzer won the title after defeating Jozef Kovalík 7–5, 7–6(7–4) in the final.

Seeds
• # 🇦🇷 Federico Delbonis (first round)

• # 🇩🇴 Víctor Estrella Burgos (first round)

• # 🇦🇷 Nicolás Kicker (semifinals)

• # 🇪🇸 Roberto Carballés Baena (second round)

• # 🇮🇹 Marco Cecchinato (semifinals)

• # 🇦🇷 Carlos Berlocq (first round)

• # Gastão Elias (quarterfinals)

• # 🇳🇴 Casper Ruud (first round)