| Date: | March 9–22 |
| Prize Money: | $3,645,000 |
| Edition: | 36th (ATP) / 21st (WTA) |
| Category: | World Tour Masters 1000 (ATP) Premier Mandatory (WTA) |
| Surface: | Hard / outdoor |
| Location: | Indian Wells, California, US |
| Venue: | Indian Wells Tennis Garden |
| Champms: |  Rafael Nadal[1] |
| Champws: |  Vera Zvonareva |
| Champmd: |  Andy Roddick / Mardy Fish[2] |
| Champwd: | Vera Zvonareva /  Victoria Azarenka |
| Main Name: | Indian Wells Open |
| Before Name: | Pacific Life Open |
The 2009 BNP Paribas Open was a tennis tournament played on outdoor hard courts. It was the 36th edition of the men's event (21st for the women), also known as the Indian Wells Open, and was classified as an ATP World Tour Masters 1000 event on the 2009 ATP World Tour and a Premier Mandatory event on the 2009 WTA Tour. Both the men's and the women's events took place at the Indian Wells Tennis Garden in Indian Wells, California, United States from March 9 through March 22, 2009.
See main article: 2009 BNP Paribas Open – Men's singles. Rafael Nadal defeated 
Andy Murray 6–1, 6–2
See main article: 2009 BNP Paribas Open – Women's singles. Vera Zvonareva defeated 
Ana Ivanovic 7–6(7–5), 6–2
See main article: 2009 BNP Paribas Open – Men's doubles. Andy Roddick / Mardy Fish defeated Max Mirnyi / 
Andy Ram 3–6, 6–1 [14–12]
See main article: 2009 BNP Paribas Open – Women's doubles. Vera Zvonareva / Victoria Azarenka defeated 
Gisela Dulko / Shahar Pe'er 6–4, 3–6, [10–5]
| Athlete | Nationality | Ranking* | Seeding | |
|---|---|---|---|---|
| Rafael Nadal | Spain | 1 | 1 | |
| Roger Federer | Switzerland | 2 | 2 | |
| Novak Djokovic | Serbia | 3 | 3 | |
| Andy Murray | United Kingdom | 4 | 4 | |
| Nikolay Davydenko | Russia | 5 | 5 | |
| Juan Martín del Potro | Argentina | 6 | 6 | |
| Andy Roddick | 7 | 7 | ||
| Gilles Simon |  France | 8 | 8 | |
| Gaël Monfils | France | 9 | 9 | |
| Fernando Verdasco | Spain | 10 | 10 | |
| Jo-Wilfried Tsonga | France | 11 | 11 | |
| David Ferrer | Spain | 12 | 12 | |
| James Blake | United States | 13 | 13 | |
| David Nalbandian | Argentina | 14 | 14 | |
| Tommy Robredo | Spain | 15 | 15 | |
| Stanislas Wawrinka | Switzerland | 16 | 16 |
The following players received wildcards into the main draw:
The following players received entry from the qualifying draw:
Robert Kendrick Kevin Kim Michael Russell Todd Widom Brendan Evans
Daniel Köllerer
Santiago Giraldo
Thomaz Bellucci