Antonio Federighi (circa 1420 – 1490) was an Italian architect and sculptor of the Renaissance period.
He began as a sculptor for the Duomo of Siena, and worked there alongside Jacopo della Quercia.
Federighi is considered as the architect who reintroduced the heavily foliated carving and the antique pagan imagery into the vocabulary of Sienese Quattrocento sculpture.
During his work as the Capomaestro of the Opera, he has designed multiple holy water basins (Acquasantieras) that, for a long time, were mistaken for pagan alters.
The Acquasantiera he designed is considered to have been commissioned to celebrate a marriage between the powerful clans or the birth of a mutual heir.