2000 Estoril Open – Men's singles

Albert Costa was the defending champion, but lost in the first round this year.

Carlos Moyá won the tournament, beating Francisco Clavet in the final, 6–3, 6–2.

Seeds
• # 🇷🇺 Yevgeny Kafelnikov (first round)

• # 🇸🇪 Magnus Norman (second round)

• # 🇪🇨 Nicolás Lapentti (semifinals)

• # 🇬🇧 Tim Henman (quarterfinals)

• # 🇪🇸 Albert Costa (first round)

• # 🇦🇷 Mariano Zabaleta (first round)

• # 🇪🇸 Félix Mantilla (second round)

• # 🇫🇷 Nicolas Escudé (quarterfinals)