Leigh Adrian Harline (March 26, 1907 – December 10, 1969) was an Academy Award-winning film composer.
Born in Salt Lake City, Utah, he worked for various radio stations before joining the Walt Disney studios in 1932 as arranger and scorer. He won the Academy Award for Best Original Music Score and the Academy Award for Best Original Song (for "When You Wish Upon a Star") for Disney's Pinocchio (1940). The tune later become the theme for Disney's television series.
A graduate of the University of Utah, Harline was a musical director for local Los Angeles radio when he was hired by Walt Disney to score the Silly Symphonies cartoon series in the 1930s. Together with Frank Churchill, Larry Morey, and Paul J. Smith, Harline was responsible for such Disney-film tunes as "I'm Wishing," "Whistle While You Work," "Heigh Ho," and "Some Day My Prince Will Come." "When You Wish upon a Star" is a popular song written by Ned Washington and Leigh Harline and introduced in the 1940 Walt Disney movie Pinocchio, where it is sung by Cliff Edwards in the character of Jiminy Cricket, over the opening credits and again in the final scene of the film. The song won.