The Patagonian forest earthcreeper (Upucerthia saturatior) is a species of bird in the ovenbird family Furnariidae. The species was described in 1900 by W.E.D. Scott, but was listed as a subspecies of the scale-throated earthcreeper in Chapman in 1919. A 2009 paper elevated it back up to species status. The Patagonian forest earthcreeper is found in Argentina and Chile. It is thought to undertake some movements during the winter, with some individuals possibly crossing the Andes.