Piazza Cardinale Niccolò, Historical square in Prato, Italy.

Piazza Cardinale Niccolò is a square in Prato enclosed by two wings of buildings: an 18th-century block to the north and a structure from 1865 to the south. At its far end stand the flank of the San Niccolò Monastery church and the Conservatory wall. A round fountain with a chased railing and geometric flowerbeds set in stone occupies the centre, and ornamental holm oaks replaced the original trees during the 2016 repaving.

The square's current layout dates to an 18th-century renovation by architect Giuseppe Valentini. This work implemented the reform programs of Pietro Leopoldo through enlightened classicism.

The square sits beside the San Niccolò Monastery Church and Conservatory, with municipal offices and a primary school in the surrounding buildings. These uses shape daily life here and make it a meeting point for residents from different parts of the community.

The square is designed entirely as a pedestrian zone, making it easy and safe to explore. Enhanced lighting around the fountain provides good visibility, especially in the evening.

A scene from Francesco Nuti's film 'Madonna che silenzio c'è stasera' was shot in this square: the protagonist meets the prostitute played by Edy Angelillo here.