Ian Cusson is a Canadian composer of art song, opera, and orchestral work. Of Métis (Georgian Bay Métis Community) and French Canadian descent, his work explores the Canadian Indigenous experience, including the history of the Métis people, the hybridity of mixed-racial identity, and the intersection of Western and Indigenous cultures.

He studied composition with Jake Heggie and Samuel Dolin, and piano with James Anagnoson at the Glenn Gould School. He is the recipient of numerous awards and grants including the Chalmers Professional Development Grant, the National Aboriginal Achievement Foundation Award, and several grants through the Canada Council, the Ontario Arts Council, and the Toronto Arts Council. Ian was an inaugural Carrefour Composer in Residence with the National Arts Centre Orchestra from 2017-2019. He is currently the Composer-in-Residence for the Canadian Opera Company for 2019-2021. He is an Associate Composer of the Canadian Music Centre and a member of the Canadian League of Composers.

He lives in Toronto with his wife and four children.