| Girls' doubles | |
|---|---|
| 2009 French Open | |
| Champions |  Elena Bogdan  Noppawan Lertcheewakarn |
| Runners-up |  Tímea Babos  Heather Watson |
| Score | 3–6, 6–3, 10–8 |
Polona Hercog and Jessica Moore were the defending champions, but did not compete in the Juniors this year.
Elena Bogdan and Noppawan Lertcheewakarn won in the final 3–6, 6–3, 10–8, against Tímea Babos and Heather Watson.
Ana Bogdan / 
Ajla Tomljanović (first round) Elena Bogdan / Noppawan Lertcheewakarn (champions) Tímea Babos / Heather Watson (final)
Kristina Mladenovic / Silvia Njirić (quarterfinals)
Verónica Cepede Royg / 
Camila Silva (second round)
Yana Buchina / Ksenia Pervak (semifinals)
Beatrice Capra / Lauren Embree (quarterfinals) Christina McHale / Sloane Stephens (second round)| Semifinals | Final | ||||||||||||
Ksenia Kirillova Martina Trevisan | 2 | 7 | [8] | ||||||||||
| 3 | Tímea Babos Heather Watson | 6 | 5 | [10] | |||||||||
| 3 | Tímea Babos Heather Watson | 6 | 3 | [8] | |||||||||
| 2 | Elena Bogdan Noppawan Lertcheewakarn | 3 | 6 | [10] | |||||||||
| 6 | Yana Buchina Ksenia Pervak | 1 | 6 | [4] | |||||||||
| 2 | Elena Bogdan Noppawan Lertcheewakarn | 6 | 4 | [10] | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Bogdan A Tomljanović | 2 | 1 | ||||||||||||||||||||||||
| K Kirillova M Trevisan | 6 | 6 | K Kirillova M Trevisan | 6 | 6 | ||||||||||||||||||||||
| WC | N Mohn G Radovanovic | 6 | 6 | WC | N Mohn G Radovanovic | 3 | 2 | ||||||||||||||||||||
H James  M Zanevska | 0 | 1 | K Kirillova M Trevisan | w/o | |||||||||||||||||||||||
 I Holland O Rogowska | 4 | 6 | [10] | I Holland O Rogowska | |||||||||||||||||||||||
| N Guskova K Pimkina | 6 | 1 | [5] | I Holland O Rogowska | 6 | 6 | |||||||||||||||||||||
 L Berlinecke  N Kolar | 6 | 5 | [1] | 5 | V C Royg C Silva | 2 | 2 | ||||||||||||||||||||
| 5 | V C Royg C Silva | 0 | 7 | [10] | K Kirillova M Trevisan | 2 | 7 | [8] | |||||||||||||||||||
| 3 | T Babos H Watson | 6 | 7 | 3 | T Babos H Watson | 6 | 5 | [10] | |||||||||||||||||||
M Burdette  Q Lemoine | 4 | 5 | 3 | T Babos H Watson | 6 | 6 | |||||||||||||||||||||
| P Leykina E Nikitina | 6 | 2 | [10] | P Leykina E Nikitina | 3 | 2 | |||||||||||||||||||||
| WC | L Jeanjean D Salnikova | 4 | 6 | [8] | 3 | T Babos H Watson | 6 | 6 | |||||||||||||||||||
 K Paliivets  C Simmonds | 6 | 6 | K Paliivets C Simmonds | 3 | 4 | ||||||||||||||||||||||
 T Čurović  N Pintusova | 2 | 2 | K Paliivets C Simmonds | 6 | 6 | ||||||||||||||||||||||
 Z Diyas V Savinykh | 62 | 5 | 8 | C McHale S Stephens | 4 | 2 | |||||||||||||||||||||
| 8 | C McHale S Stephens | 7 | 7 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 6 | Y Buchina K Pervak | 1 | 6 | [12] | |||||||||||||||||||||||
 F Al-Nabhani  GS Ysidora | 6 | 4 | [10] | 6 | Y Buchina K Pervak | 2 | 6 | [10] | |||||||||||||||||||
 M Ejdesgaard  A Granillo | 2 | 2 |  U Eikeri Z Susányi | 6 | 2 | [0] | |||||||||||||||||||||
| U Eikeri Z Susányi | 6 | 6 | 6 | Y Buchina K Pervak | 3 | 6 | [10] | ||||||||||||||||||||
S Cornish  P Ormaechea | 7 | 0 | [10] | 4 | K Mladenovic S Njirić | 6 | 3 | [6] | |||||||||||||||||||
 J Čepelová V Juhászová | 64 | 6 | [8] | S Cornish P Ormaechea | 63 | 0 | |||||||||||||||||||||
| WC |  E Mutaguchi A Omae | 2 | 1 | 4 | K Mladenovic S Njirić | 7 | 6 | ||||||||||||||||||||
| 4 | K Mladenovic S Njirić | 6 | 6 | 6 | Y Buchina K Pervak | 1 | 6 | 4 | |||||||||||||||||||
| 7 | B Capra L Embree | 6 | 6 | 2 | E Bogdan N Lertcheewakarn | 6 | 4 | [10] | |||||||||||||||||||
| WC | C de Bernardi S Ficheux | 2 | 2 | 7 | B Capra L Embree | w/o | |||||||||||||||||||||
A Krunić  S Zaniewska | 6 | 63 | [2] | A Orlik L Robson | |||||||||||||||||||||||
| A Orlik L Robson | 4 | 7 | [10] | 7 | B Capra L Embree | 1 | 4 | ||||||||||||||||||||
| R Hogenkamp L Kerkhove | 6 | 3 | [8] | 2 | E Bogdan N Lertcheewakarn | 6 | 6 | ||||||||||||||||||||
I Khromacheva  A-S Mestach | 1 | 6 | [10] | I Khromacheva A-S Mestach | 3 | 7 | [3] | ||||||||||||||||||||
| S Haas M Linette | 3 | 3 | 2 | E Bogdan N Lertcheewakarn | 6 | 5 | [10] | ||||||||||||||||||||
| 2 | E Bogdan N Lertcheewakarn | 6 | 6 | ||||||||||||||||||||||||
Simona Halep defeated Elena Bogdan in the final, 6–4, 6–7(3–7), 6–2 to win the girls' singles tennis title at the 2008 French Open. Halep would go on to win the women's title for her maiden major title ten years later.
Ksenia Milevskaya and Urszula Radwańska were the defending champions, but did not compete in the juniors that year.
Urszula Radwańska was the defending champion, but did not compete in the Juniors this year.
Anastasia Pavlyuchenkova and Urszula Radwańska were the defending champions but did not compete in the Juniors this year.
Kristína Kučová was the defending champion, but did not compete in the juniors that year.
Ksenia Milevskaya and Urszula Radwańska were the defending champions, but did not compete in the juniors that year.
Arantxa Rus was the defending champion, but she did not participate that year.
Ksenia Lykina and Anastasia Pavlyuchenkova were the defending champions, but chose not to participate that year.
Simona Halep was the defending champion, but did not compete this year.
Laura Robson was the defending champion but lost in the third round to Quirine Lemoine.
Polona Hercog and Jessica Moore were the defending champions but did not compete in the Juniors this year.
The United States Open Tennis Championships is a hardcourt tennis tournament held annually at Flushing Meadows, starting on the last Monday in August and lasting for two weeks. The tournament consists of five main championship events: men's and women's singles, men's and women's doubles, and mixed doubles, with additional tournaments for seniors, juniors, and wheelchair players.
Noppawan Lertcheewakarn and Sandra Roma were the defending champions, but Roma chose not to participate in the Juniors that year.
Lertcheewakarn partnered with Elena Bogdan, but Valeriya Solovyeva and Maryna Zanevska defeated them in the final 1–6, 6–3 [10–7].
Elena Bogdan and Noppawan Lertcheewakarn were the defending champions, but they did not compete in the juniors this year.
Noppawan Lertcheewakarn was the defending champion, but chose to compete in the ladies' singles competition instead as a wild card and lost to Andrea Hlaváčková in the first round.
Noppawan Lertcheewakarn and Sally Peers were the defending champions, but both were ineligible to participate in the juniors.
Gréta Arn defeated defending champion Yanina Wickmayer 6–3, 6–3 in the final to win her 2nd career title.
Sabine Lisicki was the defending champion but was defeated in the second round by Urszula Radwańska.
Timea Bacsinszky and Caroline Garcia were the defending champions, but decided not to participate.
Bethanie Mattek-Sands and Lucie Šafářová were the defending champions, but decided not to compete together. Mattek-Sands played alongside Heather Watson, but lost in the quarterfinals to Andreja Klepač and Katarina Srebotnik. Šafářová teamed up with Tímea Babos, but lost in the first round to Kateryna Bondarenko and Olga Savchuk.