Castagneto may refer to:
Places in Italy Municipalities (comuni) Castagneto Carducci, in the Province of Livorno Castagneto Po, in the Metropolitan City of Turin
Civil parishes (frazioni) Castagneto, in the municipality of Cava de' Tirreni, Province of Salerno Castagneto (Teramo), in the municipality of Teramo
Personalities Donna Marella Caracciolo di Castagneto (b. 1927), Italian-American designer Don Carlo Caracciolo di Castagneto (1925-2008), Italian editor