The Tufi gate is one of the portals through the medieval walls of Sienna into the city. It is situated on Strada di Tufi, which is now Via Pier Andrea Matioli in Siena, region of Tuscany, Italy. It is a historical marvel with a three-arched entrance into the old town of Siena.
The gate protects the southern entrance to the city. It was constructed between 1325 and 1326 by the Sienese architect Agnolo di Ventura.