About the Castanheiro Surname

If your family name is Castanheiro, its origin lies with Castanheira, a Portuguese surname. At root, the name means “Chestnut tree”.

Family crest and blazon

Arms linked to Castanheira and its spellings were granted to individual families; our heraldry team traces which line they belonged to.

Castanheiro is listed among the recognised spellings of Castanheira. Census takers and immigration officers often wrote what they heard.