The 2003 Acura Classic was a tennis tournament played on outdoor hard courts in San Diego in the United States. It was part of Tier II of the 2003 WTA Tour. The tournament was held from July 28 through August 3, 2003.
Justine Henin-Hardenne def. Kim Clijsters, 3–6, 6–2, 6–3
- It was Henin-Hardenne's 5th title of the year and the 13th of her career.
Kim Clijsters / Ai Sugiyama def. Lindsay Davenport / Lisa Raymond, 6–4, 7–5
- It was Clijsters's 6th title of the year and the 25th of her career. It was Sugiyama's 6th title of the year and the 30th of her career.