Douglas Gamley (24 September 1924, Melbourne – 5 February 1998) was an Australian film composer, who worked on British and American films.
Gamley's early teachers included Waldemar Seidel in Melbourne. He was particularly influenced by Modest Mussorgsky, creating a full orchestral version of his Pictures at an Exhibition, and adapting his Night on Bald Mountain for his score for Asylum (1972). He adapted Gabriel Fauré's Pavane for The Monster Club (1980).
Gamley created many vocal arrangements for Dame Joan Sutherland and Dame Kiri Te Kanawa, both for performing and recordings. He also made orchestral arrangements of songs for Luciano Pavarotti and Victoria de los Ángeles. He was associated for many years with the Australian Pops Orchestra as conductor and arranger.