First-seeded Rafael Nadal defeated Gastón Gaudio in the final, 6–3, 6–3, 6–4 to win the singles tennis title at the 2005 Stuttgart Open.
Guillermo Cañas was the reigning champion, but did not participate this year.
Seeds
Draws
Key Q - Qualifier WC - Wild Card r - Retired LL - Lucky loser w/o - Walkover
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
External links Main draw