The 2018–19 Duke Blue Devils men's basketball team represented Duke University during the 2018–19 NCAA Division I men's basketball season. They were coached by 39th-year head coach, Mike Krzyzewski. The Blue Devils played their home games at Cameron Indoor Stadium in Durham, North Carolina as a member of the Atlantic Coast Conference. Led by tournament MVP Zion Williamson, they won Duke's 21st ACC tournament title. They received the ACC's automatic bid to the NCAA tournament and reached the Elite Eight, where they lost 68–67 to Michigan State. Duke finished as 2018-19 RPI National Champions for finishing #1 in final RPI Rankings.