The 2004 ASB Classic was a women's tennis tournament played on outdoor hard courts at the ASB Tennis Centre in Auckland, New Zealand that was part of Tier IV of the 2004 WTA Tour. It was the 19th edition of the tournament and took place from 5 January until 10 January 2004. Third-seeded Eleni Daniilidou won her second consecutive singles title at the event and earned $22,000 first-prize money.
Finals
Singles
Eleni Daniilidou defeated Ashley Harkleroad, 6–3, 6–2
It was Daniilidou 1st singles title of the year and the 4th of her career.
Doubles
Mervana Jugić-Salkić / Jelena Kostanić defeated Virginia Ruano Pascual / Paola Suárez, 7–6(8–6), 3–6, 6–1