The 2018–19 William & Mary Tribe men's basketball team represented the College of William & Mary during the 2018–19 NCAA Division I men's basketball season. The Tribe, coached by 16th-year head coach Tony Shaver, played their home games at Kaplan Arena in Williamsburg, Virginia as members of the Colonial Athletic Association. Street & Smith's preseason basketball preview rated William & Mary with the toughest schedule in the CAA.