The 2009–10 PBA Philippine Cup Finals was the championship basketball best-of-7 series of the 2009–10 PBA Philippine Cup, and the conclusion of the conference's playoffs. The Alaska Aces and the Purefoods Tender Juicy Giants played for the 99th championship contested by the league.

The two franchises were in their seventh Finals match-up, with both teams splitting the six Finals series winning three each. However, Purefoods swept Alaska 4–0 to win their eighth PBA title, and only the third best-of-seven sweep in league history. James Yap was named Best Player of the Conference and Finals MVP.

The Giants finished third in the elimination round, outlasted the Rain or Shine Elasto Painters in the quarterfinals in five games, and defeated the #2 seed and sister team San Miguel Beermen in six games after trailing the series 1–2.

The Aces qualified after beating the Barangay Ginebra Kings in the semifinals via a 4–0 sweep; they previously qualified to the semifinals after posting the best record after the elimination round.

The first half was contested tightly, Alaska led 19–14 after the first, then the two teams ending up tied at halftime. Purefoods star players James Yap and Kerby Raymundo had to sit the majority of the third quarter due to foul trouble, but the Giants only trailed by three after the third period. In the fourth quarter, Purefoods had an early surge to put them up by seven; Alaska cut the lead and tied the game midway the quarter at 72–all off a Reynel Hugnatan lay-up. Rafi Reavis scored all of his six points in the succeeding possessions to put the Giants up 78–74, then he blocked Willie Miller's shot at the other end. Roger Yap missed a jumpshot, but Reavis scored in a tip-in to put Purefoods up by six. Miller scored a three-pointer to cut the lead by three with eleven seconds left, but Niño Canaleta split his free throws to put Purefoods up for good.

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