Knut Buen (born 31 October 1948) is a Norwegian fiddler, composer, folklorist and publisher.
He won the national music contest Landskappleiken in 1983 and 1986, and is known for his collection of traditional songs and melodies.
He received Spellemannprisen in 1992 for the album Fykerud'n (in cooperation with Hauk Buen), and in 1994 for the album Bjølleslåtten (together with Kåre Nordstoga and Leif Rygg).
He was decorated Knight, First Class of the Order of St. Olav in 1999.
This article about a Norwegian musician is a stub.