The 1964–65 Princeton Tigers men's basketball team represented Princeton University in intercollegiate college basketball during the 1964–65 NCAA University Division men's basketball season. Butch van Breda Kolff served as head coach and the team captain was Bill Bradley. The team played its home games in the Dillon Gymnasium in Princeton, New Jersey. The team was the champion of the Ivy League, earning an invitation to the 23-team 1965 NCAA Division I men's basketball tournament.