The 2018–19 Princeton Tigers men's basketball team represented Princeton University during the 2018–19 NCAA Division I men's basketball season.

The Tigers, led by eighth-year head coach Mitch Henderson, played their home games at Jadwin Gymnasium as members of the Ivy League.

The Tigers finished the 2017–18 season with a record of 13–16 (5–9 in Ivy League play), which tied for fifth place with the Columbia Lions.

Roster On December 29, Princeton defeated number 17-ranked Arizona State after Richmond Aririguzoh made a pair of free throws with 24.8 seconds left to provide the final 67–66 margin of victory.

[1] It was Princeton's first win over a ranked opponent since defeating the 25-ranked 2011–12 Harvard Crimson on February 11, 2012, and the school's first win over a top-20 opponent since head coach Henderson was a player on the 1995–96 Princeton team that upset the UCLA Bruins in the 1996 NCAA Division I men's basketball tournament.