Kay Hallahan
 Elsie Kay Hallahan (born 4 November 1941) commonly known as Kay Hallahan is an Australian politician. A member of the Labor Party she served as a minister in the Burke Dowding and Lawrence ministries in Western Australia and was the first woman ever to sit in both the Western Australian Legislative Assembly and the Western Australian Legislative Council.She joined the Western Australian Police in 1969 before moving into social work in 1981.