Rex Barnes
 Rex Barnes (born June 4 1959) is a Canadian politician. Born in Grand Falls-Windsor Newfoundland and Labrador Barnes was a member of the Progressive Conservative caucus in the Canadian House of Commons representing the riding of Gander—Grand Falls. Elected in a by-election in 2002 he lost his seat in the 2004 election to Liberal candidate Scott Simms running as the member for Bonavista—Exploits.Barnes has been a paramedic and a volunteer worker.