A ferro (plural ferri) or ferro da facciata is an item of functional wrought-iron work on the façade of an Italian building.

Ferri are a common feature of Medieval and Renaissance architecture in Lazio, Tuscany and Umbria.

They are of three main types: ferri da cavallo have a ring for tethering horses, and are set at about 1.5 metres from the ground; holders for standards and torches are placed higher on the façade and on the corners of the building; arpioni have a cup-shaped hook or hooks to support cloth for shade or to be dried, and are set near balconies.

[1] In Florence, ferri da cavallo and arpioni were often made to resemble the head of a lion, the symbolic marzocco of the Republic of Florence.

[2] Later, cats, dragons, horses and fantastic animals were also represented.