Tizzoni House is a medieval building in Pisa, located in San Martino.
The original building dates back to the twelfth or thirteenth century: so old are the pillars and the shelves made with verrucana stone that still can be seen on the facade. The upper floors of the structure are instead made with bricks, like the arches that support the floors. The arch to the left on the ground floor has a slightly protruding ring.

In the facade a sculpture has been preserved: it's a fragment of a Roman sarcophagus from the third century AD, perhaps a muse, which popular tradition has identified as the legendary heroine of Pisa Kinzica de' Sismondi.