William Oliver Strunk (March 22, 1901 – February 24, 1980) was an American musicologist. Charles Rosen called him one of the most influential American musicologists of the 1930s–1960s. He was known for his anthology Source Readings in Music History (1950) and his work on Byzantine music. He was the son of Elements of Style coauthor William Strunk, Jr. (1869–1946)