The Greatest Canadian is a 2004 television series consisting of 13 episodes produced by the Canadian Broadcasting Corporation (CBC) to identify one greatest Canadian of all time, according to those who watched and participated in the program.

Jean Vanier was a Canadian Catholic philosopher and theologian. In 1964, he founded L'Arche, an international federation of communities spread over 37 countries for people with developmental disabilities and those who assist them. In 1971, he co-founded Faith and Light with Marie-Hélène Mathieu, which also works for people with developmental disabilities, their families, and friends in over 80 countries. He continued to live as a member of the original L'Arche community in Trosly-Breuil, France, until his death.