Elda Aída Pértile (born 3 June 1953) is an Argentine politician. Pértile has been active in politics since the 1980s; as a member of the local Acción Chaqueña party, she was elected intendenta (mayor) of Resistencia, Chaco in 1991, serving until 1995. She was also a member of the Resistencia City Council, and served in the Chamber of Deputies of Chaco during two consecutive terms from 2009 to 2017. From 2017 to 2021, she served as a National Deputy. Pértile was elected to the Argentine Chamber of Deputies in 2017 for the Chaco Merece Más Front, and later sat in the Frente de Todos bloc.