2012 Estoril Open – Men's singles

Juan Martín del Potro defended the title by winning 6–4, 6–2 against Richard Gasquet.

Seeds
The top four seeds receive a bye into the second round. • # 🇦🇷 Juan Martín del Potro (champion)

• # 🇫🇷 Richard Gasquet (final)

• # Stanislas Wawrinka (semifinals)

• # 🇪🇸 Albert Ramos (semifinals)

• # 🇺🇿 Denis Istomin (second round, retired)

• # Robin Haase (quarterfinals)

• # 🇪🇸 Albert Montañés (quarterfinals)

• # 🇮🇹 Flavio Cipolla (second round)

Seeds
• # 🇪🇸 Daniel Muñoz de la Nava (qualified)

• # 🇪🇸 Javier Martí (qualified)

• # 🇪🇸 Íñigo Cervantes Huegun (qualified)

• # 🇪🇸 Iván Navarro (qualified)

• # 🇰🇿 Evgeny Korolev (first round)

• # 🇮🇪 James McGee (second round)

• # Nick van der Meer (first round, retired)

• # 🇪🇸 Sergio Gutiérrez Ferrol (qualifying competition)

Qualifiers
• # 🇪🇸 Daniel Muñoz de la Nava

• # 🇪🇸 Javier Martí

• # 🇪🇸 Íñigo Cervantes

• # 🇪🇸 Iván Navarro