2004 US Open – Men's singles
| Men's singles | |
|---|---|
| 2004 US Open | |
| Champion | Roger Federer |
| Runner-up | Lleyton Hewitt |
| Score | 6–0, 7–6(7–3), 6–0 |
| Draw | 128 |
| Seeds | 32 |
Roger Federer defeated Lleyton Hewitt in the final, 6–0, 7–6(7–3), 6–0 to win the men's singles tennis title at the 2004 US Open. It was his first US Open title and fourth major title overall. He was the first man to capture the Australian Open, Wimbledon Championships, and US Open in a season since Jimmy Connors in 1974. With the win, he became the tenth man to win three majors in a calendar year.
Andy Roddick was the defending champion, but was defeated in the quarterfinals by Joachim Johansson.
This marked the final major singles appearances of Todd Martin and Wayne Ferreira, the latter of whom made a record 56th consecutive major singles appearance.