Harold Fraser-Simson was an English composer of light music, including songs and the scores to musical comedies. His most famous musical was the World War I hit The Maid of the Mountains, and he later set numerous children's poems to music, especially those of A. A. Milne.

The Maid of the Mountains, called in its original score a musical play, is an operetta or "Edwardian" musical comedy in three acts. The music was by Harold Fraser-Simson, with additional music by James W. Tate, lyrics by Harry Graham and additional lyrics by Frank Clifford Harris and Valentine, and the book was written by Frederick Lonsdale, best known for his later society comedies such as On Approval. After an initial try-out at the Prince's Theatre in Manchester on 23 December 1916, the show was rewritten and opened at Daly's Theatre in London on 10 February 1917.