Ian Gilfillan (born 7 June 1932) is a former Australian politician. He was educated in Adelaide and was based on Kangaroo Island. He contested the 1974 federal election as a member of the Australia Party, but joined the Australian Democrats in 1977. In 1982, he was elected to the South Australian Legislative Council as a Democrat, holding the position until 1993. He returned to the Council in 1997 and served until his retirement in 2006.[1]