Mario Vegetti (4 January 1937 – 11 March 2018) was an Italian historian of philosophy.

He graduated with a thesis on Thucydides' historiography at the University of Pavia, as a student at Collegio Ghislieri.

He translated and wrote a commentary of many of Hippocrates', Aristoteles', and Galen's writings.

Among Vegetti's are Il coltello e lo stilo (1996), Tra Edipo e Euclide (1983), L'etica degli antichi (1996), Guida alla lettura della 'Repubblica' di Platone (1999), Quindici lezioni su Platone (2003).

Some of his papers are devoted to topics concerning the forms of subjectivity, anthropological theories, and the formation of the concept of cause, other studies deal with Plato, Aristotle, Stoicism, Hellenistic Medicine, and Galen.