The Betsileo woolly lemur or Betsileo avahi (Avahi betsileo) is a species of woolly lemur native to southeastern Madagascar, in the District of Fandriana. It weighs about 1 kg. The pelage differs significantly from other southeastern woolly lemurs in that it is primarily light reddish brown on most of the body and grey under the jaw and on the extremities. The pelage is thicker on the head than other eastern woolly lemurs.