Manila Clasico is a Philippine Basketball Association (PBA) rivalry between the Barangay Ginebra San Miguel and Magnolia Chicken Timplados Hotshots, two of the most successful and most popular teams in the league. It is also a rivalry between two San Miguel Corporation teams (also known as sister teams). The former represents the Ginebra San Miguel franchise while the latter carries the San Miguel Pure Foods franchise.

Matchups between the two teams, whether in the elimination round or in the playoffs, have regularly drawn huge crowds to the venues, high television ratings, and social media engagement.

The two teams have won a total of 29 championships: the Ginebra franchise have 15, and the Purefoods franchise have 14. However, as of the end of the 2022–23 PBA season, the Ginebra and Purefoods franchises have only met in the finals twice in the 32 seasons they have been together in the league. Head-to-head, they have an even PBA finals record, 1–1.

While the rivalry traces all the way back to the 1980s, the name by which it is now well-known only came up in 2012, when online sports editor Jaemark Tordecilla called the Ginebra-Purefoods rivalry as the Philippine basketball equivalent of the El Clásico football rivalry between Real Madrid and FC Barcelona. Tordecilla said that the rivalry “has been one of Philippine sports’ most underrated phenomena, because media has rarely hyped up the matchup” before. But the popularity of the two teams, their history, and the profiles of their original fanbase made the rivalry special and endure through the years.

The rivalry is said to have begun even before Purefoods entered the PBA. Ginebra playing coach Robert Jaworski had a simmering feud with former Toyota teammate Ramon Fernandez. The hostilities between two of the biggest stars in the league during that time started to peak in the 1986 PBA season. Jaworski's Ginebra and Fernandez's Tanduay Rhum Makers battled each other in the All-Filipino finals. Fernandez led Tanduay to a 3–1 victory against Ginebra, but Jaworski would get his revenge when his team ended Tanduay Rhum's grandslam bid with a 151–130 rout in the season's third conference. Since then, whenever teams of Jaworski and Fernandez meet, the fans anticipate greater physicality and intensity because of their apparent hatred for one another. The Tanduay PBA franchise was eventually bought by Purefoods in 1988.

But the cold war between “The Living Legend” and “El Presidente” just served as starting point for the enmity. In the 80s, Jaworski was the most polarizing player in the league. While millions of people cheered for him, just as many people hated him because of his and his team's perceived “dirty play.” Fans were either for Jaworski's team or weren’t. Meanwhile, Purefoods was trotting out a talented bunch of rookies led by Jojo Lastimosa, Jerry Codiñera, and Alvin Patrimonio to complement the veteran Fernandez. Suddenly, all the Jaworski haters now had a group of talented, fresh-faced, young players, for whom they could cheer against the “bad boys” of Ginebra. Purefoods was positioned as the league's glamour team, in stark contrast to Ginebra's darling of the masses. It became the basketball battle of the lower class (masa) and the upper class (sosyal), and a war between the “bad guys” and the “good boys.” While Ginebra continued to attract the masses, particularly the males, Purefoods brought in a new wave of fans among the younger set, including the females. From out of nowhere, Purefoods dislodged San Miguel as the second most popular team in the league and with the Jaworski-Fernandez rivalry serving as a perfect side story, the rivalry was formed.

Ginebra and Purefoods first met on April 5, 1988, with Purefoods playing coach Fernandez matching coaching skills with Ginebra counterpart Jaworski. Purefoods won the match, 116–110, despite falling down by 16 points in the third quarter. Fernandez was voted best player of the game. The squads again faced each other in the semifinals of the 1988 Open Conference. Purefoods’ 111–109 overtime win sent the Hotdogs into the finals against San Miguel Beer, while a loss would have meant another playoff game with Ginebra for the second finals berth. After this game, some frustrated Ginebra fans at the gallery section pelted the court with plastic cups and coins.

The squads’ first meeting in an All-Filipino tournament saw another Añejo collapse, losing a big 19-point third quarter lead and bowing down to their nemesis once more, 114–110. This game marked the first time Alvin Patrimonio played against a Ginebra squad. In yet another memorable game, Purefoods overcame a 102–106 deficit with 51 seconds remaining to win the game, 109–106, on an amazing 7–0 run. The game, played on August 18, 1988, garnered a phenomenal 53.1 percent share of television viewers.