John Adair (born 27 October 1963), better known as Johnny Adair or Mad Dog Adair, is an Ulster loyalist and the former leader of the "C Company", 2nd Battalion Shankill Road, West Belfast Brigade of the Ulster Freedom Fighters (UFF). This was a cover name used by the Ulster Defence Association (UDA), a loyalist paramilitary organisation. In 2002 Adair was expelled from the organisation following a violent internal power struggle. Since 2003, he, his family and a number of supporters have been forced to leave Northern Ireland by the mainstream UDA.