2010 Estoril Open – Men's singles

Albert Montañés defend his 2009 title, after winning against Frederico Gil in the final. The Spaniard became the second player to win back-to-back titles at this tournament, following Thomas Muster in 1995 and 1996.

Seeds
The top four seeds receive a bye into the second round. • # Roger Federer (semifinals)

• # Ivan Ljubičić (withdrew due to a left side strain)

• # 🇫🇷 Gaël Monfils (withdrew due to illness)

• # 🇪🇸 Albert Montañés (champion)

• # 🇪🇸 Guillermo García López (semifinals)

• # 🇩🇪 Florian Mayer (first round)

• # 🇦🇷 Juan Ignacio Chela (first round)

• # Pablo Cuevas (quarterfinals)