Costa, sometimes Da Costa or da Costa, is an Italian and Jewish surname (particularly in Liguria, Piedmont and Sardinia) and, because of Italian immigration, in Argentina and Portugal due to the last name given to Roman Catholic converts.
Costa, sometimes Da Costa or da Costa, is a Portuguese and Spanish surname commonly found in Portugal, Barcelona, Brazil, and other lusophone nations. It is also a very common name in Italy (particularly in Liguria, Piedmont and Sardinia) and, because of Italian immigration, in Argentina and India due to the last name given to Roman Catholic converts.