Aimery (or Aimeric) III (died February 1239), known in Spanish as Aimerico Pérez de Lara, was the Viscount of Narbonne from 1194 until his own death. He was a member of the House of Lara. Throughout his reign he had to navigate competing claims of suzerainty over him and until 1223 his reign was dominated by the Occitan War. He participated unenthusiastically on the side of the crusaders, but retained his viscounty, which he passed on to his son.