The 2004 Acura Classic was a tennis tournament played on outdoor hard courts at the La Costa Resort and Spa in San Diego, California, United States.

It was part of Tier I of the 2004 WTA Tour.

It was the 26th edition of the tournament was held from July 25[1] through August 1, 2004.

Fourth-seeded Lindsay Davenport won the singles title and earned $189,000 first-prize money.

Lindsay Davenport defeated Anastasia Myskina 6–1, 6–1 Cara Black / Rennae Stubbs defeated Virginia Ruano Pascual / Paola Suárez 4–6, 6–1, 6–4