William Arthur Neilson AC (27 August 1925 – 9 November 1989) was Premier of Tasmania from 1975 to 1977. Born in Hobart, and educated at Ogilvie High School, Neilson became a postman before entering politics. He married Jill Benjamin, daughter of Phyllis Benjamin, in Melbourne in 1948. They had one son Andrew and three daughters, Christine, Carol and Robin.