2005 Italian Open – Men's Singles
was the defending champion but lost in the first round to Potito Starace.
Rafael Nadal won in the final 6-4, 3-6, 6-3, 4-6, 7-6 against Guillermo Coria, on his tournament debut.Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
- Andy Roddick '
- Marat Safin '
- Gastón Gaudio '
- Tim Henman '
- Rafael Nadal
- Andre Agassi '
- Carlos Moyà '
- David Nalbandian '
- Guillermo Coria '
- Joachim Johansson '
- Guillermo Cañas '
- Ivan Ljubičić '
- Tommy Robredo '
- Nikolay Davydenko '
- Radek Štěpánek '
- Thomas Johansson
Draw
Finals
Top Half
Section 1
Section 2
Section 3
Section 4