Most Common Last Names in Brazil

Variant forms of each name were counted separately, as recorded in the list of household residents at the time the questionnaire was collected.

Diacritical marks were not considered during the name collection, therefore accent variations were ignored.

The data processing initially consisted of excluding words of one character in length; excluding two-character words where both characters were identical; and excluding the connectives ‘da’, ‘das’, ‘de’, ‘des’, ‘do’, ‘dos’, ‘di’, ‘dis’, ‘du’, and ‘dus’.