Donald McLean III (born October 2, 1945) is an American singer-songwriter and guitarist, known to fans as the "American Troubadour" or "King of the Trail". He is best known for his 1971 hit "American Pie", an eight-and-a-half-minute folk rock song that has been referred to as a "cultural touchstone". His other hit singles include "Vincent", "Dreidel", "Castles in the Air", and "Wonderful Baby", as well as renditions of Roy Orbison's "Crying" and the Skyliners' "Since I Don't Have You".

McLean's song "And I Love You So" has been recorded by Elvis Presley, Perry Como, Helen Reddy, Glen Campbell, and others. In 2000, Madonna had a hit with a rendition of "American Pie".

In 2004, McLean was inducted into the Songwriters Hall of Fame. In January 2018, BMI certified that "American Pie" had reached five million airplays and "Vincent" three million.