Alarcão
Alarcão is a Portuguese surname. It is a toponymic surname, meaning it originated from a place name. The place name "Alarcão" itself likely derives from an Arabic origin, possibly referencing a watchtower or strategic high point. Families with the surname Alarcão are historically found in Portugal, and through emigration, are now present in other countries, particularly Brazil. The name is associated with families of various social standings and professions throughout Portuguese history. Genealogical research is often required to determine specific lineages and connections to specific geographic locations.