| Doubles | |
|---|---|
| 2004 Rogers AT&T Cup | |
| Champions |  Shinobu Asagoe Ai Sugiyama |
| Runners-up |  Liezel Huber  Tamarine Tanasugarn |
| Score | 6–0, 6–3 |
Svetlana Kuznetsova and Martina Navratilova were the defending champions, but chose not to participate that year.
Shinobu Asagoe and Ai Sugiyama won in the final 6–0, 6–3, against Liezel Huber and Tamarine Tanasugarn.
The top four seeds received a bye into the second round.
Virginia Ruano Pascual / 
Paola Suárez (semifinals)
Elena Likhovtseva / Vera Zvonareva (quarterfinals)
María Vento-Kabchi / 
Angelique Widjaja (second round) Liezel Huber / Tamarine Tanasugarn (final) Shinobu Asagoe / Ai Sugiyama (champions)
Els Callens / Lina Krasnoroutskaya (first round, retired due to a right wrist sprain for Krasnoroutskaya) Gisela Dulko / Patricia Tarabini (second round)
Ansley Cargill / 
Bryanne Stewart (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Virginia Ruano Pascual Paola Suárez | 3 | 6 | 4 | |||||||||
| 4 | Liezel Huber Tamarine Tanasugarn | 6 | 2 | 6 | |||||||||
| 4 | Liezel Huber Tamarine Tanasugarn | 0 | 3 | ||||||||||
| 5 | Shinobu Asagoe Ai Sugiyama | 6 | 6 | ||||||||||
| WC |  Amélie Mauresmo Mary Pierce | 2 | 5 | ||||||||||
| 5 | Shinobu Asagoe Ai Sugiyama | 6 | 7 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | V Ruano Pascual P Suárez | 6 | 6 | ||||||||||||||||||||||||
| N Miyagi L Osterloh | 7 | 7 | N Miyagi L Osterloh | 2 | 2 | ||||||||||||||||||||||
| A Augustus J Russell | 66 | 61 | 1 | V Ruano Pascual P Suárez | 6 | 6 | |||||||||||||||||||||
| WC |  M Marois M-È Pelletier | 67 | 4 | M Drake L Lee-Waters | 2 | 3 | |||||||||||||||||||||
| M Drake L Lee-Waters | 7 | 6 | M Drake L Lee-Waters | 6 | 3 | 7 | |||||||||||||||||||||
| A Jidkova A Morigami | 6 | 4 | 3 | 7 | G Dulko P Tarabini | 2 | 6 | 63 | |||||||||||||||||||
| 7 | G Dulko P Tarabini | 2 | 6 | 6 | 1 | V Ruano Pascual P Suárez | 3 | 6 | 4 | ||||||||||||||||||
| 4 | L Huber T Tanasugarn | 6 | 2 | 6 | |||||||||||||||||||||||
| 4 | L Huber T Tanasugarn | 6 | 6 | ||||||||||||||||||||||||
 L Dekmeijere  A Matic | 2 | 6 | 6 | L Dekmeijere A Matic | 4 | 4 | |||||||||||||||||||||
 B Strýcová G Voskoboeva | 6 | 2 | 4 | 4 | L Huber T Tanasugarn | 6 | 4 | 6 | |||||||||||||||||||
 R Grande M Washington | w/o | 8 | A Cargill B Stewart | 4 | 6 | 4 | |||||||||||||||||||||
| A Harkleroad K McCain | R Grande M Washington | 67 | 4 | ||||||||||||||||||||||||
| WC | S Dubois A Wozniak | 1 | 6 | 4 | 8 | A Cargill B Stewart | 7 | 6 | |||||||||||||||||||
| 8 | A Cargill B Stewart | 6 | 4 | 6 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | E Callens L Krasnoroutskaya | 4 | r | ||||||||||||||||||||||||
 MF Alves  İ Şenoğlu | 6 | MF Alves İ Şenoğlu | 65 | 6 | 6 | ||||||||||||||||||||||
| M Marrero A Parra Santonja | 65 | 6 | 5 | T Golovin L McShea | 7 | 3 | 0 | ||||||||||||||||||||
| T Golovin L McShea | 7 | 4 | 7 | MF Alves İ Şenoğlu | 6 | 4 | 3 | ||||||||||||||||||||
| WC | A Mauresmo M Pierce | 6 | 6 | WC | A Mauresmo M Pierce | 4 | 6 | 6 | |||||||||||||||||||
| B Mattek S Perry | 2 | 3 | WC | A Mauresmo M Pierce | 6 | 6 | |||||||||||||||||||||
| 3 | M Vento-Kabchi A Widjaja | 4 | 4 | ||||||||||||||||||||||||
| WC | A Mauresmo M Pierce | 2 | 5 | ||||||||||||||||||||||||
| 5 | S Asagoe A Sugiyama | 7 | 6 | 5 | S Asagoe A Sugiyama | 6 | 7 | ||||||||||||||||||||
| Q |  K Brandi  R Neffa-de los Ríos | 65 | 4 | 5 | S Asagoe A Sugiyama | 6 | 5 | 6 | |||||||||||||||||||
| T Ashley L Granville | 7 | 66 | 7 | T Ashley L Granville | 4 | 7 | 0 | ||||||||||||||||||||
 L Baker F Lubiani | 67 | 7 | 5 | 5 | S Asagoe A Sugiyama | 6 | 6 | ||||||||||||||||||||
 J Janković  A Kremer | 1 | 5 | 2 | E Likhovtseva V Zvonareva | 2 | 1 | |||||||||||||||||||||
| J Craybas M Weingärtner | 6 | 7 | J Craybas M Weingärtner | 1 | 2 | ||||||||||||||||||||||
| 2 | E Likhovtseva V Zvonareva | 6 | 6 | ||||||||||||||||||||||||
Justine Henin-Hardenne defeated Kim Clijsters in the final, 6–3, 4–6, 6–3 to win the women's singles tennis title at the 2004 Australian Open. It was her third major title, each time defeating Clijsters in the final. Clijsters would eventually win the title seven years later.
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.
Virginia Ruano Pascual and Paola Suárez were the defending champions, and successfully defended their title, defeating Cara Black and Liezel Huber in the final 4–6, 6–3, 6–3 Cara Black would fail to complete the career grand slam in women's doubles because of this loss
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.
Virginia Ruano Pascual and Paola Suárez were defending champions, and won in the final 6–4, 7–5, against Svetlana Kuznetsova and Elena Likhovtseva.
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.
Kim Clijsters and Ai Sugiyama were the defending champions, but Clijsters chose not to participate. Sugiyama played alongside Liezel Huber, but they lost in the first round to Shinobu Asagoe and Rika Fujiwara.
Shinobu Asagoe and Ai Sugiyama were the defending champions. They were both present but did not compete together.
Asagoe partnered with Tathiana Garbin, but lost in the semifinals to Conchita Martínez and Virginia Ruano Pascual.
Sugiyama partnered with Daniela Hantuchová, but lost in the semifinals to Anna-Lena Grönefeld and Martina Navratilova.
Virginia Ruano Pascual and Paola Suárez were the two-time defending champions, but were defeated in the final by Kim Clijsters and Ai Sugiyama 7–6(7–5), 2–6, 7–9.
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.
Serena and Venus Williams were the defending champions, but lost in the third round to Elena Dementieva and Lina Krasnoroutskaya.
Virginia Ruano Pascual and Paola Suárez were the defending champions and won in the final 6–2, 6–3, against Svetlana Kuznetsova and Martina Navratilova in straight sets. This was Ruano Pascual's 4th career Grand Slam doubles title and her 2nd title at the US Open. It was also Suárez' 4th career Grand Slam doubles title and her 2nd title at the US Open.
The doubles Tournament at the 2006 NASDAQ-100 Open took place between March 20 and April 6 on the outdoor hard courts of the Tennis Center at Crandon Park in Key Biscayne, United States. Lisa Raymond and Samantha Stosur won the title, defeating Liezel Huber and Martina Navratilova in the final.
Lisa Raymond and Rennae Stubbs were the defending champions, but competed this year with different partners. Raymond teamed up with Lindsay Davenport and were eliminated in second round due to a withdrawal, while Stubbs teamed up with Elena Bovina and lost in first round.
Elena Bovina and Justine Henin-Hardenne were the defending champions but none competed this year, as both players decided to priorize the singles competition.
Jill Craybas was the defending champion, but lost in quarterfinals to Arantxa Parra Santonja.