The 2019–20 Southern Miss Golden Eagles men's basketball team represented the University of Southern Mississippi during the 2019–20 NCAA Division I men's basketball season.

The Golden Eagles, led by first-year head coach Jay Ladner, played their home games at Reed Green Coliseum in Hattiesburg, Mississippi as members of Conference USA.

They defeated Marshall in the quarterfinals before losing to Western Kentucky in the semifinals of the C-USA tournament.

[2] Doc Sadler resigned on April 11 after 5 seasons at Southern Miss.

The following day, new Nebraska head coach Fred Hoiberg announced he had hired Sadler, a former Cornhuskers head coach who had spent a season on Hoiberg's staff at Iowa State, as an assistant.