Lisa Raymond and Rennae Stubbs were the defending champions, but competed this year with different partners. Both players faced each other at the first round, in which Stubbs (teaming up with Cara Black) defeated Raymond (teaming up with Mary Pierce) in three sets.
| Doubles | |
|---|---|
| 2004 Porsche Tennis Grand Prix | |
| Champions |  Cara Black Rennae Stubbs |
| Runners-up |  Anna-Lena Grönefeld Julia Schruff |
| Score | 6–3, 6–2 |
Stubbs and Black will eventually win the title, by defeating Anna-Lena Grönefeld and Julia Schruff 6–3, 6–2 in the final.
Seeds
edit
Cara Black / 
Rennae Stubbs (champions)
Janette Husárová / 
Elena Likhovtseva (semifinals)- Alicia Molik /
Ai Sugiyama (quarterfinals, withdrew due to a right thigh strain on Molik) - Anastasia Myskina / Vera Zvonareva (quarterfinals)
Draw
editKey
edit- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- SE = Special exempt
- PR = Protected ranking
- ITF = ITF entry
- JE = Junior exempt
- w/o = Walkover
- r = Retired
- d = Defaulted
- SR = Special ranking
Draw
edit| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | C Black R Stubbs
| 2 | 6 | 7 | |||||||||||||||||||||||
 M Pierce L Raymond
| 6 | 4 | 5 | 1 | C Black R Stubbs
| 6 | 6 | ||||||||||||||||||||
| L Davenport C Morariu
| 78 | 6 | L Davenport C Morariu
| 2 | 4 | ||||||||||||||||||||||
 I Benešová C Schaul
| 66 | 4 | 1 | C Black R Stubbs
| 6 | 6 | |||||||||||||||||||||
| 3 | A Molik A Sugiyama
| 6 | 7 | C Dhenin M Weingärtner
| 0 | 4 | |||||||||||||||||||||
 S Farina Elia F Schiavone
| 2 | 5 | 3 | A Molik A Sugiyama
| |||||||||||||||||||||||
 T Perebiynis M Serna
| 4 | 4 | C Dhenin M Weingärtner
| w/o | |||||||||||||||||||||||
| C Dhenin M Weingärtner
| 6 | 6 | 1 | C Black R Stubbs
| 6 | 6 | |||||||||||||||||||||
| WC | AL Grönefeld J Schruff
| 6 | 6 | WC | AL Grönefeld J Schruff
| 3 | 2 | ||||||||||||||||||||
 B Schett P Schnyder
| 2 | 2 | WC | AL Grönefeld J Schruff
| 6 | 6 | |||||||||||||||||||||
| WC |  D Hantuchová A Sánchez Vicario
| 3 | 5 | 4 |  A Myskina V Zvonareva
| 4 | 4 | ||||||||||||||||||||
| 4 | A Myskina V Zvonareva
| 6 | 7 | WC | AL Grönefeld J Schruff
| 6 | 6 | ||||||||||||||||||||
| Q | E Birnerová L Osterloh
| 2 | 7 | 77 | 2 | J Husárová E Likhovtseva
| 1 | 2 | |||||||||||||||||||
 J Kostanić L McShea
| 6 | 5 | 61 | Q | E Birnerová L Osterloh
| 4 | 1 | ||||||||||||||||||||
 E Callens Å Svensson
| 6 | 1 | 4 | 2 | J Husárová E Likhovtseva
| 6 | 6 | ||||||||||||||||||||
| 2 | J Husárová E Likhovtseva
| 1 | 6 | 6 | |||||||||||||||||||||||