The 2005 Acura Classic was a tennis tournament played on outdoor hard courts in San Diego in the United States. It was part of Tier I of the 2005 WTA Tour. The tournament was held from August 26 through August 7, 2005.
Mary Pierce def. Ai Sugiyama, 6–0, 6–3
- It was Pierce's 5th title of the year and the 43rd of her career.
Conchita Martínez / Virginia Ruano Pascual def. Daniela Hantuchová / Ai Sugiyama, 6–7, 6–1, 7–5
- It was Martínez's 2nd title of the year and the 13th of her career. It was Ruano Pascual's 5th title of the year and the 34th of her career.