Julien-Etienne-Léopold Sacaze (24 September 1847, Saint-Gaudens – 20 November 1889) was a French lawyer, historian and archaeologist known for his epigraphic investigations of the Pyrenees region.
In 1872 he became a practicing lawyer in his hometown of Saint-Gaudens, later earning distinctions as secretary of the conseil de l'Ordre (1877) and as bâtonnier (1888).
[1] With prehistorian Édouard Piette, he conducted several archaeological excavations in the Pyrenees.
In 1875, the two men uncovered cromlechs (megalithic structures) at Mount Espiau, and later discovered tumuli at the plateau of Lannemezan (1877–78) as well as an early Iron Age sépultures à incinération, found at the plain of Rivière, located southwest of Saint-Gaudens.
An academic association in Bagnères-de-Luchon known as the Académie Julien Sacaze is named after him.