The PBA on ABC was a branding for presentation of Philippine Basketball Association games by the Associated Broadcasting Company. The PBA on ABC premiered on February 22, 2004, replacing the previous broadcaster of the games, National Broadcasting Network and Intercontinental Broadcasting Corporation.

The 2004–05 PBA season was the 30th season of the Philippine Basketball Association. Instead of the usual calendar year of February–December, the league changed its schedule to the current October–July format, while limiting the number of conferences from three to two. As part of the new league format, the season was preceded with a transition conference known as the 2004 PBA Fiesta Conference.