The 2019–20 New Mexico State Aggies men's basketball team represented New Mexico State University during the 2019–20 NCAA Division I men's basketball season. The Aggies were led by third-year head Chris Jans, and played their home games at the Pan American Center in Las Cruces, New Mexico as members of the Western Athletic Conference. They finished the season 25–6, 16–0 in WAC play to win the WAC regular season championship. They were set to be the No. 1 seed in the WAC tournament, however, the tournament was cancelled amid the COVID-19 pandemic. Due to the WAC Tournament cancellation, they were awarded the WAC's automatic bid to the NCAA tournament. However, the NCAA Tournament was also cancelled due to the same outbreak.