The 2004–05 PBA Philippine Cup, or known as the 2004-05 -PBA Philippine Cup for sponsorship reasons, was the All-Filipino Conference of the Philippine Basketball Association's (PBA) 2004-05 season. The Barangay Ginebra Kings won its first back-to-back titles with a 4-2 conquest of the Talk 'N Text Phone Pals. The series was marred by a controversial reversal of the Phone Pals' Game One victory after fielding in an ineligible Asi Taulava in the said game. Taulava was serving an indefinite suspension after being cited as one of six Filipino-American players with questionable citizenship papers.