| Doubles | |
|---|---|
| 2004 Bank of the West Classic | |
| Champions |  Eleni Daniilidou  Nicole Pratt |
| Runners-up |  Iveta Benešová  Claudine Schaul |
| Score | 6–2, 6–4 |
| Draw | 16 |
| Seeds | 4 |
Cara Black and Lisa Raymond were the defending champions, but did not compete this year.
Eleni Daniilidou and Nicole Pratt won the title, defeating Iveta Benešová and Claudine Schaul 6–2, 6–4 in the final.
Meilen Tu / 
María Vento-Kabchi (quarterfinals) Eleni Daniilidou / Nicole Pratt (champions)
Petra Mandula / 
Patty Schnyder (semifinals)
Jelena Kostanić / 
Janet Lee (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Tu M Vento-Kabchi | 6 | 6 | ||||||||||||||||||||||||
A Augustus  N Grandin | 3 | 2 | 1 | M Tu M Vento-Kabchi | 4 | 6 | 1 | ||||||||||||||||||||
| I Benešová C Schaul | 61 | 6 | 710 | I Benešová C Schaul | 6 | 3 | 6 | ||||||||||||||||||||
| WC | A Haynes  J Janković | 77 | 3 | 68 | I Benešová C Schaul | 6 | 6 | ||||||||||||||||||||
| 4 | J Kostanić J Lee | 6 | 7 | 4 | J Kostanić J Lee | 2 | 4 | ||||||||||||||||||||
| Q | L Osterloh R Zalameda | 2 | 5 | 4 | J Kostanić J Lee | 6 | 6 | ||||||||||||||||||||
 A Jidkova L Lee-Waters | 64 | 6 | 6 | A Jidkova L Lee-Waters | 3 | 1 | |||||||||||||||||||||
A Harkleroad  P Tarabini | 77 | 3 | 3 | I Benešová C Schaul | 2 | 4 | |||||||||||||||||||||
| T Ashley A Spears | 6 | 6 | 2 | E Daniilidou N Pratt | 6 | 6 | |||||||||||||||||||||
 L Baker  F Lubiani | 4 | 2 | T Ashley A Spears | 65 | 4 | ||||||||||||||||||||||
 K Liggan  A Parra Santonja | 4 | 7 | 2 | 3 | P Mandula P Schnyder | 77 | 6 | ||||||||||||||||||||
| 3 | P Mandula P Schnyder | 6 | 5 | 6 | 3 | P Mandula P Schnyder | 3 | 0 | |||||||||||||||||||
| J Russell M Washington | 63 | 4 | 2 | E Daniilidou N Pratt | 6 | 6 | |||||||||||||||||||||
| C Dellacqua N Sewell | 77 | 6 | C Dellacqua N Sewell | 3 | 1 | ||||||||||||||||||||||
 A Barna A Frazier | 1 | 4 | 2 | E Daniilidou N Pratt | 6 | 6 | |||||||||||||||||||||
| 2 | E Daniilidou N Pratt | 6 | 6 | ||||||||||||||||||||||||
Virginia Ruano Pascual and Paola Suárez were the two-time defending champions, but they were defeated in the second round by Anna Chakvetadze and Elena Vesnina.
Cara Black and Liezel Huber were the defending champions, but did not play together. Black partnered with Rennae Stubbs and Huber partnered with Martina Navratilova but both pairs lost to Yan Zi and Zheng Jie, in the semifinals and quarterfinals respectively.
Nathalie Dechy and Vera Zvonareva defeated Dinara Safina and Katarina Srebotnik in the final, 7–6(7–5), 7-5 to win the women's doubles title at the 2006 US Open.
Cara Black and Rennae Stubbs were the defending champions, but did not play together. Stubbs partnered with Lisa Raymond but lost in the first round to Stéphanie Cohen-Aloro and Selima Sfar.
Virginia Ruano Pascual and Paola Suárez were the defending champions, but Suárez did not participate due to injury. Ruano Pascual partnered Conchita Martínez, but lost in the first round to Jennifer Hopkins and Mashona Washington.
Twelfth-seeded Yan Zi and Zheng Jie defeated first-seeded Lisa Raymond and Samantha Stosur, 2–6, 7–6 (7), 6–3 to win the women's doubles title at the 2006 Australian Open.
Jelena Dokić was the defending champion, but chose not to participate this year.
Maria Kirilenko and Maria Sharapova were the defending champions but lost in the first round to Marion Bartoli and Tamarine Tanasugarn.
At the 2004 Acura Classic doubles tennis competition, Kim Clijsters and Ai Sugiyama were the defending champions, but Clijsters chose not to participate, and only Sugiyama competed that year. Sugiyama partnered with Shinobu Asagoe, but lost in the first round to Amélie Mauresmo and Mary Pierce.
Evie Dominikovic and Alicia Molik were the defending champions, but they did not compete in the Junior's this year.
Alexandra Panova and Tatiana Poutchek were the defending champions, but Poutchek decided not to participate.
Panova partnered with Akgul Amanmuradova, but were eliminated in the semifinals by Eleni Daniilidou and Vitalia Diatchenko.
Daniilidou and Diatchenko later defeated Lyudmyla Kichenok and Nadiya Kichenok in the final, 6–4, 6–3.
Monica Seles was the defending champion, but lost in the semifinals to Eleni Daniilidou.
Anna Smashnova-Pistolesi was the defending champion, but retired in the semifinals against Cho Yoon-jeong.
Eleni Daniilidou and Vitalia Diatchenko were the defending champions, but decided not to defend their title together. Daniilidou played with Eva Birnerová, but lost in the first round to Lyudmyla Kichenok and Nadiya Kichenok.
Diatchenko played alongside Akgul Amanmuradova, losing in the semifinals to Paula Kania and Polina Pekhova.
They eventually won the title Anna Chakvetadze and Vesna Dolonc retired in the final after losing the first set 2–6.
Eleni Daniilidou and Nicole Pratt were the defending champions, but Pratt did not compete this year. Daniilidou teamed up with Jennifer Russell and reached the quarterfinals, before being eliminated by Květa Peschke and Francesca Schiavone.
Virginia Ruano Pascual and Paola Suárez were the defending champions, but had different outcomes. While Suárez did not compete this year, Ruano Pascual teamed up with Conchita Martínez and successfully defended her title, by defeating Iveta Benešová and Květa Peschke 6–1, 6–4 in the final.
Nicole Vaidišová was the defending champion from 2005, but decided not to compete in 2006.
Kim Clijsters and Ai Sugiyama were the defending champions, but Sugiyama did not compete this year. Clijsters teamed up with her sister Elke Clijsters and lost in quarterfinals to Émilie Loit and Petra Mandula.
Kim Clijsters and Janette Husárová were the defending champions, but none competed this year. Clijsters decided to focus on the singles tournament, which she ended winning.
The women's doubles of the 2005 ECM Prague Open tournament was played on clay in Prague, Czech Republic.