2019 Sánchez-Casal Cup – Singles

Roberto Carballés Baena was the defending champion but retired in the third round against Jozef Kovalík.

Salvatore Caruso won the title after defeating Kovalík 6–4, 6–2 in the final.

Seeds
All seeds receive a bye into the second round. • # 🇪🇸 Roberto Carballés Baena (third round, retired)

• # 🇪🇸 Jaume Munar (semifinals)

• # 🇪🇸 Alejandro Davidovich Fokina (second round)

• # 🇮🇹 Salvatore Caruso (champion)

• # 🇸🇰 Andrej Martin (withdrew)

• # 🇮🇹 Paolo Lorenzi (second round)

• # Pedro Sousa (quarterfinals)

• # 🇮🇹 Lorenzo Giustino (second round)

• # 🇪🇸 Pedro Martínez (third round)

• # 🇮🇹 Filippo Baldi (quarterfinals)

• # 🇮🇹 Federico Gaio (third round)

• # 🇨🇦 Steven Diez (third round)

• # 🇧🇪 Kimmer Coppejans (second round)

• # 🇮🇹 Alessandro Giannessi (semifinals)

• # 🇮🇳 Ramkumar Ramanathan (second round)

• # 🇩🇪 Rudolf Molleker (third round, withdrew)