The two-time Academy Award-winner passed away at his home in Montreal in Canada, reported Los Angeles Times.
Back began his career as an artist and illustrator in the graphics department of Radio-Canada's first-ever TV station. He moved into films in 1970, when he produced his first animated short, 'Abracadabra'.
In 1981, following five other shorts, Back was nominated for a best animated short Oscar for 'Tout Rien' (All Nothing).
His next project 'Crac' won him an Academy Award in 1982 and he brought home a second Oscar in 1988 for 'L'homme qui Plantait des Arbres' (The Man Who Planted Trees).
In recognition of his career success, he was later named a Knight of the National Order of Quebec and an Officer of the Order of Canada.
Back was also known for his activism in the fight for animal rights.