Magnus Isacsson (1948 - August 2, 2012) was a Canadian documentary filmmaker whose films investigated contemporary political issues and topics in social activism.
Isacsson was born in Sweden in 1948. His father founded and ran an art school and his mother taught children with learning disabilities. Isacsson first became involved with photography, with photographs exhibited at the Museum of Modern Art in Stockholm when he was 18 years old. He immigrated to Canada in 1970. He first worked as a radio producer for Sveriges Radio and the CBC, before moving into television to direct reports for the English– and French-language CBC television networks, for such programs as The Fifth Estate and .
Frustrated by the creative constraints of working for TV networks, Isacsson began a career as an independent filmmaker in 1986. His film Uranium, the story of radioactive contamination on Native land by Canada's uranium mines, won a Golden Sheaf Award at the Yorkton Film Festival in 1991; Power, a feature-length chronicle of the Cree's five-year struggle against the Great Whale Hydro Project in Northern Quebec, received the award for Best Documentary at the International Environmental Film Festival in Paris (1997), amongst other accolades and nominations. The Choir Boys, a film about the journey of a choir of homeless men in Montreal, won the award for Best Documentary at the Mumbai International Film Festival in 2000.
Isacsson has been involved in the Documentary Organization of Canada (formerly CIFC) since its beginning, contributing to the formation of the Montreal chapter in 1988. He was also involved in starting the Rencontres internationales du documentaire de Montréal (RIDM) as a member of its first programming committee. In association with the RIDM, Isacsson instigated the Docu-Mondays (Lundis du Doc) screening series. Isacsson was a member of the ARRQ director's union in Quebec, and has served as a board member for the Observatoire du Documentaire.