Until 1 January 2007, Haarby municipality or Hårby municipality was a municipality (Danish, kommune) in Funen County on the southwest coast of the island of Funen in central Denmark. To the south is Helnæs Bay (Helnæs Bugt). The municipality covered an area of 80 km², and had a total population of 5,037 (2005). Its last mayor was Ole Møller, a member of the Conservative People's Party (Det Konservative Folkeparti) political party.