| Copa do Brasil | |
| Year: | 2004 |
| Other Titles: | Copa do Brasil 2004 |
| Country: |  Brazil |
| Dates: | February 4 - June 30 |
| Num Teams: | 64 |
| Champions: | Santo André (SP) |
| Runner-Up: | Flamengo (RJ) |
| Matches: | 114 |
| Goals: | 325 |
| Top Goal Scorer: | Dauri (8) |
| Prevseason: | 2003 |
| Nextseason: | 2005 |
The Copa do Brasil 2004 was the 16th staging of the Copa do Brasil.
The competition started on February 4, 2004 and concluded on June 30, 2004 with the second leg of the final, held at the Estádio do Maracanã in Rio de Janeiro, in which Santo André lifted the trophy for the first time with a 2-0 victory over Flamengo.
Dauri, of 15 de Novembro, with 8 goals, was the competition's top goal scorer.
The competition was played by 64 clubs in a knock-out format where all rounds were played over two legs and the away goals rule was used, but in the first two rounds if the away team won the first leg with an advantage of at least two goals, the second leg was not played and the club automatically qualified to the next round.