The 2019–20 Duke Blue Devils men's basketball team represented Duke University during the 2019–20 NCAA Division I men's basketball season.

The Blue Devils played their home games at Cameron Indoor Stadium in Durham, North Carolina, as a member of the Atlantic Coast Conference.

The Blue Devils finished the season 25–6, and 15–5 in ACC play.

[4] As a result, they received the conference's automatic bid to the NCAA tournament as the overall No.

There they defeated North Dakota State, UCF, and Virginia Tech to advance to the Elite Eight where they lost to No.