Federico Sacco (February 5, 1864 in Fossano – October 2, 1948 in Trofarello) was an Italian geologist, paleontologist and mycologist.

After his secondary studies in Fossano, Federico Sacco graduated in 1884 in natural sciences at the University of Turin; he was a disciple of Martino Baretti, collaborator and friend of Quintino Sella and Luigi Bellardi, a renowned Piedmontese paleontologist.

Two of his most important works are: "Il bacino terziario e quaternario del Piemonte" ("The tertiary and quaternary basin of Piedmont"), complete with all geomorphological, stratigraphic and paleontological indications.

And the multi-volume set "I molluschi dei terreni terziari del Piemonte e della Liguria" ("The molluscs of the tertiary lands of Piedmont and Liguria"), his largest work in terms of size and concreteness: completed in 1904, it is divided into 30 volumes and represents thousands of fossil species.

Some of his geographical maps, which mainly represent the Alps and the Apennines, are present in the Archive of the Regional Science Museum of Turin.