Castano Family History

Spanish and Galician (Castaño): from castaño ‘chestnut (tree)’ (from Latin castanea) hence a topographic name for someone who lived by such a tree or a habitational name from any of various places called with this word.

Italian (southern): from medieval Greek kastanon ‘chestnut’ hence a topographic name (see 1 above) or a nickname for someone with chestnut-colored hair.

Italian (Lombardy): topographic name from càstano ‘chestnut’ from Latin castanus (see 1 above) or a habitational name from Castano Primo in Milano province.