The 2009 LA Women's Tennis Championships was a women's tennis tournament played on outdoor hard courts.

It was the 36th and last edition of the LA Women's Tennis Championships, and was part of the Premier Series of the 2009 WTA Tour.

It was held at the Home Depot Center in Carson, California, near Los Angeles, United States, from August 3 through August 9, 2009.

Tenth-seeded Flavia Pennetta won the singles title.

[1] Flavia Pennetta defeated Samantha Stosur 6–4, 6–3 Chuang Chia-jung / Yan Zi defeated Maria Kirilenko / Agnieszka Radwańska 6–0, 4–6, [10–7] The following players received wildcards into the singles main draw The following players received entry from the qualifying draw: The following player received the lucky loser spot: