The 2018–19 UMass Minutemen basketball team represented the University of Massachusetts Amherst during the 2018–19 NCAA Division I men's basketball season.

The Minutemen were led by second-year head coach Matt McCall and played their home games at the William D. Mullins Memorial Center in Amherst, Massachusetts as members of the Atlantic 10 Conference.

They finished the season 11-21, 4-14 in A-10 Play to tie for 12th place.

They lost in the first round of the A-10 tournament to George Washington.

They beat La Salle in the first round of the A-10 tournament before losing in the second round to George Mason.