2023 Oeiras Ladies Open – Singles

Elisabetta Cocciaretto was the defending champion but chose not to participate.

Danka Kovinić won the title, defeating Rebeka Masarova in the final, 6–2, 6–2.

Seeds
• # 🇨🇿 Marie Bouzková (quarterfinals)

• # 🇨🇿 Linda Nosková (first round, retired)

• # 🇪🇬 Mayar Sherif (semifinals)

• # Anna Blinkova (second round)

• # 🇲🇪 Danka Kovinić (champion)

• # 🇪🇸 Nuria Párrizas Díaz (second round)

• # 🇮🇹 Sara Errani (second round)

• # 🇭🇺 Anna Bondár (first round)