Charles-Arthur Dumoulin Cannon (11 September 1905 – 23 September 1976) was a Liberal party member of the Canadian House of Commons. He was a lawyer by career.
He was first elected at the Îles-de-la-Madeleine riding in the 1949 general election. Cannon was re-elected for multiple terms in 1953 and 1957. After completing his final term in the 23rd Canadian Parliament, Cannon was defeated by James Russell Keays of the Progressive Conservative party.
Some of Cannon's relatives have also been Members of Parliament. Namely his grandfather Charles Fitzpatrick, his uncle Lucien Cannon and his nephew Lawrence Cannon.