Aristóbulo del Valle (15 March 1845 – 29 January 1896) was a lawyer and politician born in Dolores, province of Buenos Aires, Argentina. He was, together with Leandro Alem, one of the founders of the Radical Civic Union. Del Valle studied in the Faculty of Law of the University of Buenos Aires. He abandoned his studies to join the army during the Paraguayan War, took them up later and graduated. As a young man, he worked in the newspaper of the city of Buenos Aires.