Phyllis Ruth Blakeley, CM (2 August 1922 – 25 October 1986) was a Canadian historian, biographer and archivist. Born in Halifax, Nova Scotia, Blakeley received a Bachelor of Arts degree, a Bachelor of Education degree, and a Master of Arts degree from Dalhousie University. In 1945, she became a research assistant at the Public Archives of Nova Scotia. She became Assistant Archivist in 1959 and Associate Archivist in 1977. In 1982, she was appointed as the Provincial Archivist for Nova Scotia and was the first woman to hold that position. She retired in 1985.