Castagneto Carducci is a comune located in the Province of Livorno within the Tuscany region of Italy. The municipality is situated approximately 90 kilometres southwest of Florence and about 50 kilometres southeast of the city of Livorno.
The town is named in honor of the poet Giosuè Carducci, who resided in the area for several years during his childhood. It serves as a notable destination within the Tuscan countryside, identified primarily by its geographical proximity to major coastal and inland hubs.