The 2019–20 Saint Francis Red Flash men's basketball team represented Saint Francis University during the 2019–20 NCAA Division I men's basketball season.

The Red Flash, led by eighth-year head coach Rob Krimmel, played their home games at the DeGol Arena in Loretto, Pennsylvania as members of the Northeast Conference.

They defeated Bryant and Sacred Heart to reach the championship game of the NEC tournament where they lost to Robert Morris.

Due to tiebreakers, they were the 1-seed in the 2019 Northeast Conference men's basketball tournament.

The Red Flash defeated Bryant in the quarterfinals and LIU Brooklyn in the semifinals, yet lost in the championship game to Fairleigh Dickinson.