The 2019–20 Texas–Rio Grande Valley Vaqueros men's basketball team represented the University of Texas Rio Grande Valley in the 2019–20 NCAA Division I men's basketball season. The Vaqueros, led by fourth-year head coach Lew Hill, played their home games at the UTRGV Fieldhouse in Edinburg, Texas as members of the Western Athletic Conference. They finished the season 14–16, 9–7 in WAC play to finish in third place. They were set to be the No. 2 seed in the WAC tournament, however, the tournament was cancelled amid the COVID-19 pandemic.