2019 Lima Challenger – Singles

Cristian Garín was the defending champion but chose not to defend his title.

Thiago Monteiro won the title after defeating Federico Coria 6–2, 6–7(7–9), 6–4 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇮🇹 Marco Cecchinato (second round)

• # 🇦🇷 Leonardo Mayer (third round)

• # 🇧🇷 Thiago Monteiro (champion)

• # 🇸🇰 Andrej Martin (second round)

• # Pedro Sousa (second round)

• # 🇮🇳 Sumit Nagal (second round)

• # 🇦🇷 Federico Coria (final)

• # 🇦🇷 Facundo Bagnis (semifinals)

• # 🇮🇹 Lorenzo Giustino (second round, retired)

• # 🇵🇪 Juan Pablo Varillas (semifinals)

• # 🇪🇸 Mario Vilella Martínez (third round)

• # João Domingues (second round)

• # 🇩🇪 Yannick Hanfmann (third round)

• # 🇦🇷 Facundo Mena (second round)

• # 🇧🇷 João Menezes (quarterfinals)

• # 🇦🇷 Andrea Collarini (third round)