The 2019–20 SIU Edwardsville Cougars men's basketball team represented Southern Illinois University Edwardsville during the 2019–20 NCAA Division I men's basketball season. The Cougars, led by first-year head coach Brian Barone, played their home games in the First Community Arenaat Vadalabene Center in Edwardsville, Illinois as members of the Ohio Valley Conference. They finished the season 8–23, 5–13 in OVC play to finish in a tie for tenth place. They failed to qualify for the OVC tournament.