Moya Henderson (born 2 August 1941 in Quirindi, New South Wales) is an Australian composer.
A graduate of the University of Queensland, Henderson was Resident Composer at Opera Australia during their first season at the Sydney Opera House in 1973. In the mid-70s, Henderson studied composition with Karlheinz Stockhausen and music-theatre with Mauricio Kagel at the Cologne Musikhochschule. Henderson's compositions include such pieces as the work for organ and pre-recorded tape, Sacred Site (1983), The Dreaming written for the Australian Chamber Orchestra, "Six Urban Songs: The Patrick White Song Cycle" for soprano and orchestra (1983), and an opera, Lindy (1997), with Judith Rodriguez (as co-librettist), based on the disappearance of baby Azaria Chamberlain at Uluru in 1980. The mother, Lindy Chamberlain, was tried for the murder of the child. The opera documents the travesty of justice as it was meted out to Lindy Chamberlain and her then husband, Michael. It premiered at the Sydney Opera House in 2002.
Henderson has said she values music theatre over any other type of music.