2018–19 San Juan Knights season

The 2018–19 San Juan Knights season was the inaugural season of the franchise in the Maharlika Pilipinas Basketball League (MPBL).

The Knights finished the season third in the North Division, after a 20–5 campaign. San Juan swept both Navotas and Quezon City in the first two rounds before meeting the Manila Stars in the division finals. The Stars, who also finished 20–5, took the first game of the series. San Juan, however, fought back, and won the next two games, including the deciding game at home to advance to the national finals against the Davao Occidental Tigers. The series went back-and-forth, leading to a deciding game 5 that would be played on opposing grounds. After gaining the lead late in the fourth quarter, San Juan claimed their first MPBL championship.

The team played all of their home games this season at the Filoil Flying V Centre.