The Denûlyans were a tribe of eastern Harad, native to the fertile river valleys of Lódenûly.They were a numerous people of farmers and herdsmen who had built some impressive cities, but were also known to follow strange and superstitious religious ideas.Their main deity was a god named Asrûta, often believed to have been their name for Illuvatar, though they also followed an entire host of lesser idols.
While usually seen as Haradrim their language was actually of Talath origin and most closely related to Kheyan, Tazinain and Tedyin rather than Apysaic or Harûze. As heirs of the former gondorian puppet-kingdom of Arthanor they were not under rule of Sauron until the years between the 24th and 30th century of the third age after which only a poor and mostly deserted land remained.