| Club: | Hamburger SV |
| Season: | 2004–05 |
| Chrtitle: | Chairman |
| Chairman: | Bernd Hoffmann |
| Mgrtitle: | Head coach |
| Manager: | Klaus Toppmöller (until 17 October) Thomas Doll (from 17 October) |
| Stadium: | Volksparkstadion |
| League: | Bundesliga |
| League Result: | 8th |
| Cup1: | DFB-Pokal |
| Cup1 Result: | First round |
| Cup2: | UEFA Intertoto Cup |
| Cup2 Result: | Semi-finals |
| Pattern B1: | _hsv0405h |
| Pattern Ra1: | _hsv0405h |
| Pattern So1: | _HSV |
| Leftarm1: | FFFFFF |
| Body1: | FFFFFF |
| Rightarm1: | FFFFFF |
| Shorts1: | FF0000 |
| Socks1: | 0000FF |
| Pattern B2: | _bra04a |
| Pattern Ra2: | _bra04a |
| Pattern So2: | _HSV |
| Leftarm2: | 0000FF |
| Body2: | 0000FF |
| Rightarm2: | 0000FF |
| Shorts2: | FFFFFF |
| Socks2: | FFFFFF |
| Prevseason: | 2003–04 |
| Nextseason: | 2005–06 |
The 2004–05 season was the 85th season in the existence of Hamburger SV and the club's 42nd consecutive season in the top flight of German football. In addition to the domestic league, Hamburger SV participated in this season's edition of the DFB-Pokal and the Intertoto Cup. The season covered the period from 1 July 2004 to 30 June 2005.
Squad at end of season[1]
See main article: 2004–05 Bundesliga.
See main article: 2004–05 DFB-Pokal.
See main article: 2004 UEFA Intertoto Cup.