Margaret Mary Quirk (born 26 June 1957) is an Australian politician who has been a Labor Party member of the Legislative Assembly of Western Australia since 2001.
During her childhood, she lived for periods in Perth, Western Australia, and Oxford, England, but eventually returned to Adelaide, graduating from Unley High School.
She moved to Canberra after graduation, initially working for the administrative review section of the federal government's Department of Immigration and Ethnic Affairs.
Quirk moved to Western Australia in 1988 to work as an adviser to the Labor government of Peter Dowding on energy and environmental issues.
When Alan Carpenter replaced Geoff Gallop as premier in January 2006, she also became Minister for Women's Interests, but lost the seniors portfolio to David Templeman.