Incumbents
- Monarch: Elizabeth II
- Governor General: Vincent Massey
- Prime Minister: Louis Saint Laurent
- Premier of Alberta: Ernest Manning
- Premier of British Columbia: W.A.C. Bennett
- Premier of Manitoba: Douglas Campbell
- Premier of New Brunswick: Hugh John Flemming
- Premier of Newfoundland: Joey Smallwood
- Premier of Nova Scotia: Henry Hicks
- Premier of Ontario: Leslie Frost
- Premier of Prince Edward Island: Alex Matheson
- Premier of Quebec: Maurice Duplessis
- Premier of Saskatchewan: Tommy Douglas
Read more about this topic: 1955 In Canada