The 2017–18 Philippine Basketball Association (PBA) Philippine Cup Finals was the best-of-7 championship series of the 2017–18 PBA Philippine Cup and the conclusion of the conference's playoffs. The San Miguel Beermen and the Magnolia Hotshots competed for the 40th Philippine Cup championship and the 122nd overall championship contested by the league. San Miguel won the series in 5 games to be the first team in history to win four straight Philippine Cup titles.