1997 Estoril Open – Singles

Thomas Muster was the defending champion, but did not participate this year.

Àlex Corretja won the tournament, beating Francisco Clavet in the final, 6–3, 7–5.

Seeds
• # 🇷🇺 Yevgeny Kafelnikov (first round)

• # 🇪🇸 Carlos Moyá (quarterfinals)

• # Wayne Ferreira (first round)

• # 🇪🇸 Félix Mantilla (semifinals)

• # 🇪🇸 Alberto Berasategui (quarterfinals)

• # 🇪🇸 Àlex Corretja (champion)

• # 🇪🇸 Francisco Clavet (final)

• # 🇪🇸 Javier Sánchez (semifinals)