William Robert Picken (7 June 1956 – 23 July 2022) was an Australian rules footballer who played for the Collingwood Football Club and the Sydney Swans in the Victorian Football League (VFL). Picken was still at school when he arrived at Collingwood in 1974 from Macarthur as a forward, but he developed into a talented centre-half back. Picken was a dashing defender, capable of taking a spectacular mark and dashing off with the ball turning defence into attack in an instant.