Brett Kirk (25 October 1976) is a former Australian AFL player for the Sydney Swans. He retired late 2010 when the Swans lost against the Western Bulldogs 72-76 in the preliminary/semi finals. He has 4 children: 3 girls and a boy. Kirk captained the Swans since 2004/05-2010. With him and retired coach Paul Roos, they won the premiereship in 2005.