The 2019–20 Jacksonville Dolphins men's basketball team represented Jacksonville University in the 2019–20 NCAA Division I men's basketball season. The Dolphins, led by sixth-year head coach Tony Jasick, played their home games at Swisher Gymnasium on the university's Jacksonville, Florida campus as members of the Atlantic Sun Conference. They finished the season 14–18, 7–9 in ASUN play to finish in a tie for sixth place. They lost in the quarterfinals of the to North Florida.