| Doubles | |
|---|---|
| 2009 Aegon Classic | |
| Champions |  Cara Black  Liezel Huber |
| Runners-up | Raquel Kops-Jones Abigail Spears |
| Score | 6–1, 6–4 |
Cara Black and Liezel Huber were the defending champions and won in the final by beating Raquel Kops-Jones and Abigail Spears.
Cara Black / Liezel Huber (champions) Bethanie Mattek-Sands / Lisa Raymond (first round)
Chuang Chia-jung / 
Sania Mirza (semifinals) Raquel Kops-Jones / Abigail Spears (final)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | C Black L Huber | 6 | 6 | ||||||||||||||||||||||||
 S Errani  M Kirilenko | 4 | 1 | 1 | C Black L Huber | 6 | 4 | [10] | ||||||||||||||||||||
| J Ditty C Gullickson | 2 | 3 |  M Czink  N Grandin | 4 | 6 | [5] | |||||||||||||||||||||
| M Czink N Grandin | 6 | 6 | 1 | C Black L Huber | 7 | 6 | |||||||||||||||||||||
| 3 | C-j Chuang S Mirza | 6 | 7 | 3 | C-j Chuang S Mirza | 5 | 3 | ||||||||||||||||||||
V King  İ Şenoğlu | 1 | 5 | 3 | C-j Chuang S Mirza | 7 | 6 | |||||||||||||||||||||
Y-j Chan  Z Yan | 6 | 6 | Y-j Chan Z Yan | 65 | 1 | ||||||||||||||||||||||
| WC |  S Borwell A Keothavong | 2 | 4 | 1 | C Black L Huber | 6 | 6 | ||||||||||||||||||||
 Y Shvedova  T Tanasugarn | 6 | 0 | [11] | 4 | R Kops-Jones A Spears | 1 | 4 | ||||||||||||||||||||
 M Koryttseva  T Poutchek | 2 | 6 | [9] | Y Shvedova T Tanasugarn | 3 | 64 | |||||||||||||||||||||
 A Amanmuradova A Rodionova | 2 | 3 | 4 | R Kops-Jones A Spears | 6 | 7 | |||||||||||||||||||||
| 4 | R Kops-Jones A Spears | 6 | 6 | 4 | R Kops-Jones A Spears | 6 | 7 | ||||||||||||||||||||
 A Morita A Sugiyama | 64 | 4 | F Schiavone R Vinci | 1 | 65 | ||||||||||||||||||||||
 J Görges  A Parra Santonja | 7 | 6 | J Görges A Parra Santonja | 7 | 5 | [10] | |||||||||||||||||||||
| F Schiavone R Vinci | 6 | 6 | F Schiavone R Vinci | 5 | 7 | [12] | |||||||||||||||||||||
| 2 | B Mattek-Sands L Raymond | 3 | 3 | ||||||||||||||||||||||||
Serena and Venus Williams defeated the defending champions Cara Black and Liezel Huber in the final, 6–2, 6–2 to win the women's doubles tennis title at the 2009 US Open. It was their second US Open title together and tenth major title together overall. It was the second component in an eventual non-calendar-year Grand Slam for the sisters.
Raquel Kops-Jones and Bethanie Mattek-Sands were the defending champions, but Mattek-Sands chose not to participate this year.
Kops-Jones partnered up with Sarah Borwell, but they lost in the quarterfinals against Cara Black and Yan Zi.
Virginia Ruano Pascual and Meghann Shaughnessy won in the final 6–3, 6–4 against Black and Yan.
Sarah Borwell and Raquel Kops-Jones were the defending champions. They both participated, but competed with different partners. Borwell played alongside Melanie South, while Kops-Jones decided to play with Abigail Spears.
Kimiko Date-Krumm and Zhang Shuai won the final against Kops-Jones and Spears 6–4, 7–6(7).
Květa Peschke and Katarina Srebotnik were the defending champions, but chose not to participate this year.
Liezel Huber and Lisa Raymond defeated Raquel Kops-Jones and Abigail Spears 6–3, 6–1 in the final.
Olga Govortsova and Alla Kudryavtseva were the defending champions but Govortsova decided not to participate.
Kudryavtseva played alongside Iveta Benešová.
Tímea Babos and Hsieh Su-wei won the title beating top seeded Liezel Huber and Lisa Raymond in the final, 7–5, 6–7(2–7), [10–8]
Květa Peschke and Katarina Srebotnik were the defending champions but chose not to participate.
Raquel Kops-Jones and Abigail Spears won the final 6–2, 6–4 against Vania King and Nadia Petrova.
Liezel Huber and Lisa Raymond were the defending champions, but Huber chose not to compete that year. Raymond played with Sabine Lisicki.
Raquel Kops-Jones and Abigail Spears defeated in the final the fourth seeded Anna-Lena Grönefeld and Květa Peschke with the score 6–1, 6–4.
Liezel Huber and Lisa Raymond were the defending champions but decided not to participate together this year.
Huber played alongside Hsieh Su-wei, but lost to Daniela Hantuchová and Anabel Medina Garrigues in the first round while Raymond partnered up with Samantha Stosur, but lost to Raquel Kops-Jones and Abigail Spears in the quarterfinals.
Sara Errani and Roberta Vinci won the title, defeating Nadia Petrova and Katarina Srebotnik in the final 2–6, 6–3, [10–6].
Liezel Huber and Lisa Raymond were the defending champions but chose not to participate together. Huber played with Hsieh Su-wei, but lost in the first round to Bethanie Mattek-Sands and Sania Mirza. Raymond played alongside Samantha Stosur but lost in the quarterfinals to Cara Black and Anastasia Rodionova.
Mattek-Sands and Mirza won the title, defeating Nadia Petrova and Katarina Srebotnik in the final, 6–4, 2–6, [10–7].
Liezel Huber and Lisa Raymond were the defending champions but chose not to play together. Huber partnered up with María José Martínez Sánchez, but lost in the first round to Daniela Hantuchová and Anabel Medina Garrigues, whilst Raymond played alongside Samantha Stosur, but lost in the second round to Kimiko Date-Krumm and Casey Dellacqua.
Anastasia Pavlyuchenkova and Lucie Šafářová were the defending champions, but Pavlyuchenkova chose not to participate this year.
Šafářová played alongside Kristina Mladenovic and successfully defended the title, defeating Andrea Hlaváčková and Liezel Huber in the final 6–3, 7–6(8–6).
Tímea Babos and Hsieh Su-wei were the defending champions, but Babos decided not to participate.
Hsieh played alongside Daniela Hantuchová, but they withdrew in the quarterfinals due to Hsieh upper respiratory illness.
Third seeded Ashleigh Barty and Casey Dellacqua won the final over Cara Black and Marina Erakovic with the score of 7–5, 6–4.
Serena and Venus Williams were the defending champions, but could not defend after Venus withdrew with a back injury before the start of competition.
Raquel Kops-Jones and Abigail Spears successfully defended their title, defeating Chan Hao-ching and Janette Husárová in the final, 6–4, 6–1.
Sara Errani and Roberta Vinci were the defending champions, but lost to Serena and Venus Williams in the quarterfinals.
Andrea Hlaváčková and Lucie Hradecká won the title, defeating Ashleigh Barty and Casey Dellacqua in the final, 6–7(4–7), 6–1, 6–4.
Raquel Kops-Jones and Abigail Spears were the defending champions, but lost in the first round to Jelena Janković and Katarina Srebotnik.
Cara Black and Sania Mirza won the title, defeating Chan Hao-ching and Liezel Huber in the final, 4–6, 6–0, [11–9].
Sara Errani and Roberta Vinci were the defending champions and successfully defended their title, defeating Ekaterina Makarova and Elena Vesnina in the final, 6–4, 3–6, 7–5.
Ekaterina Makarova and Elena Vesnina were the defending champions, but lost in the second round to Julie Coin and Pauline Parmentier.
Ashleigh Barty and Casey Dellacqua were the defending champions, but lost in the final to Raquel Kops-Jones and Abigail Spears, 6–7(1–7), 1–6.
This was the first edition of the event as a WTA International tournament.