The 2018–19 Army Black Knights men's basketball team represented the United States Military Academy during the 2018–19 NCAA Division I men's basketball season.

The Black Knights were led by third-year head coach Jimmy Allen, and played their home games at Christl Arena in West Point, New York as members of the Patriot League.

6 seed in the Patriot League tournament, they lost in the quarterfinals to Lehigh.

The Black Knights finished the 2017–18 season 13–17, 6–12 in Patriot League play to finish in a tie for eighth place.

They lost in the first round of the Patriot League tournament to Loyola (MD).