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

The Bears, led by seventh-year head coach Mike Martin, played their home games at the Pizzitola Sports Center in Providence, Rhode Island as members of the Ivy League.

They failed to qualify for the Ivy League tournament.

They received an at-large bid to the College Basketball Invitational where they defeated UAB in the first round before losing in the quarterfinals to Loyola Marymount.

They failed to qualify for the Ivy League tournament.