Mario Primicerio (born 13 November 1940) is an Italian mathematician and politician and the former Mayor of Florence.

Graduating with a degree in physics from the University of Florence, in 1970 Primicerio started teaching at the university after working as a researcher at the ionized gas laboratory in Frascati.

[1] During these years he became a close collaborator of the former Mayor of Florence Giorgio La Pira.

[2] The main opposition to Primicerio's coalition came from Giorgio Morales, the outgoing mayor, former member of the Italian Socialist Party and now a supporter of Silvio Berlusconi's Forza Italia party.

[3] He has since been appointed a visiting professor at several universities, in places such as Austin, Beijing, Helsinki, Minneapolis, Novosibirsk, Oxford, Paris, Rosario, São Carlos and Tel Aviv.