Leigh Harline was an American film composer, born on March 26, 1907 in Salt Lake City, Utah, and died on December 10, 1969 in Long Beach, California (USA).
Harline graduated from the University of Utah and studied piano and organ with Mormon Tabernacle Choir conductor J. Spencer Cornwall. In 1928, he moved to California and worked at radio stations in San Francisco and Los Angeles as a composer, conductor, arranger, instrumentalist, singer, and announcer. In 1931, he provided music for the first transcontinental radio broadcast to originate from the West Coast. He was then hired by Walt Disney where he scored more than 50 tunes, including for the Silly Symphonies cartoon series in the 1930s.

Harline co-scored and orchestrated music by Frank Churchill and Paul Smith specifically for Disney's first animated feature-length cartoon Snow White and the Seven Dwarfs in 1937. Snow White contained several classic songs by Churchill and lyricist Larry Morey, including "I'm Wishing", "Whistle While You Work", "Heigh-Ho", and "Some Day My Prince Will Come."

Harline re-teamed with Smith again to compose the score for Pinocchio for Disney in 1940. He also wrote most of the movie's songs with lyricist Ned Washington. The film won the three the Academy Award for Best Original Music Score and won both Harline and Washington the Academy Award for Best Original Song for the song "When You Wish Upon a Star". The song went on to be featured on Disney's opening logo since 1985 and serve as the official theme song of the Walt Disney Company.

Harline left Disney in 1941 to compose for other studios. His credits include Mr. Bug Goes to Town (1941) for Disney's chief competitor Max Fleischer as well as Road to Utopia (1945), Mr. Blandings Builds His Dream House (1948), The Desert Rats (1953), The Enemy Below (1957), Ten North Frederick (1958), Warlock (1959), The Wonderful World of the Brothers Grimm (1962), The Travels of Jaimie McPheeters (1963), and 7 Faces of Dr. Lao (1964).

He died from complications of throat cancer on December 10, 1969, in Long Beach, California, and is buried in Valhalla Memorial Park Cemetery.