2019 Lisboa Belém Open – Singles

Tommy Robredo was the defending champion but retired in the first round against Maxime Janvier.

Roberto Carballés Baena won the title after defeating Facundo Bagnis 2–6, 7–6(7–5), 6–1 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇫🇷 Adrian Mannarino (second round)

• # 🇪🇸 Roberto Carballés Baena (champion)

• # 🇦🇷 Guido Andreozzi (quarterfinals)

• # Pedro Sousa (withdrew)

• # 🇦🇺 Alexei Popyrin (third round)

• # 🇺🇸 Bjorn Fratangelo (third round)

• # 🇪🇸 Pedro Martínez (semifinals)

• # 🇦🇺 James Duckworth (second round)

• # 🇺🇸 Marcos Giron (second round)

• # 🇦🇷 Facundo Bagnis (final)

• # 🇮🇹 Lorenzo Giustino (semifinals, retired)

• # 🇮🇹 Alessandro Giannessi (second round, retired)

• # 🇺🇸 Mitchell Krueger (second round)

• # 🇪🇸 Enrique López Pérez (third round, retired)

• # João Domingues (second round)

• # 🇦🇺 Marc Polmans (second round)