The 2019–20 Delaware Fightin' Blue Hens men's basketball team represented the University of Delaware during the 2019–20 NCAA Division I men's basketball season.

The Blue Hens were led by fourth-year head coach Martin Ingelsby and played their home games at the Bob Carpenter Center as members of the Colonial Athletic Association.

The Fightin' Blue Hens finished the 2018–19 season 17–16, 8–10 in CAA play to finish in fifth place.

They defeated William & Mary in the quarterfinals of the CAA tournament before losing in the semifinals to Hofstra.

Sources: Sources: Roster Source:[1]