1990 Sanremo Open – Singles

Seventh-seeded Jordi Arrese defeated Juan Aguilera 6–2, 6–2 in the final to secure the title.

Seeds

 * 1) 🇦🇷 Guillermo Pérez Roldán (quarterfinals)
 * 2) 🇪🇸 Juan Aguilera (final)
 * 3)  Goran Prpić (second round)
 * 4)  Marcelo Filippini (semifinals)
 * 5)  Ronald Agénor (first round)
 * 6) 🇦🇷 Franco Davín (first round)
 * 7) 🇪🇸 Jordi Arrese (champion)
 * 8) 🇮🇹 Omar Camporese (quarterfinals)