The 2017–18 American Eagles men's basketball team represented American University during the 2017–18 NCAA Division I men's basketball season. The Eagles, led by fifth-year head coach Mike Brennan, played their home games at Bender Arena in Washington, D.C. as members of the Patriot League. They finished the season 6–24, 3–15 in Patriot League play to finish in last place. They lost in the first round of the Patriot League tournament to Lafayette.