2005 Roger Federer tennis season Singles: 12 (11–1) Singles: 12 (11–1)

| Outcome | No_ | Date_ | Championship | Surface | Opponent_in_the_final | Score_in_the_final |
|---|---|---|---|---|---|---|
| Winner | 23. | January 9, 2005 | Doha , Qatar | Hard | Ivan Ljubičić | 6–3, 6–1 |
| Winner | 25. | February 27, 2005 | Dubai, United Arab Emirates (3) | Hard | Ivan Ljubičić | 6–1, 6–7 (6–8) , 6–3 |
| Winner | 26. | March 20, 2005 | Indian Wells, United States (2) | Hard | Lleyton Hewitt | 6–2, 6–4, 6–4 |
| Winner | 27. | April 3, 2005 | Miami , United States | Hard | Rafael Nadal | 2–6, 6–7 (4–7) , 7–6 (7–5) , 6–3, 6–1 |
| Winner | 28. | May 15, 2005 | Hamburg, Germany (3) | Clay | Richard Gasquet | 6–3, 7–5, 7–6 (7–4) |
| Winner | 29. | June 13, 2005 | Halle, Germany (3) | Grass | Marat Safin | 6–4, 6–7 (6–8) , 6–4 |