Antunes is principally a Portuguese patronymic surname: it was formed from the personal name António and originally expressed descent from a man who bore that name. In plain English, its historical sense is "son or descendant of António." The modern surname is inherited, however, so it does not say that a present-day bearer’s father is named António.
The Dictionary of American Family Names also records Antunes in Galician and western Spanish contexts. That wider Iberian range does not change the name’s basic classification, but it cautions against treating every occurrence outside Portugal as a recent Portuguese spelling. (Hanks et al.)
The Linguistic Formation
The documented name path is:
Latin Antonius → Portuguese António (archaic Antão) → patronymic Antunes
Patrick Hanks and his co-editors derive Antunes from Portuguese António, itself from Latin Antonius. Porto Editora’s Dicionário de Nomes Próprios defines Antão as an archaic Portuguese form of António. This explains why sources sometimes summarize the surname as "son of Antão" and others as "son of António": Antão is not an unrelated proposed origin but an older form within the same personal-name history. (Hanks et al.; Porto Editora)
The ending belongs to a medieval Iberian patronymic pattern. Linguist Odete Pereira da Silva Menon finds the Portuguese suffix @@0@@ productive through at least the fifteenth century. Carlos Rocha explains that the older -ez spelling came to be written with -s in Portuguese as the language’s sibilant sounds changed, especially by the sixteenth century. Antunes therefore should not be analyzed as though a modern writer simply added -es to the modern spelling António; it preserves an older name-forming history. (Menon; Ciberdúvidas)
What the "Meaning" Does and Does Not Mean
"Descendant of António" describes how the surname was formed, not a personal quality. The deeper origin of the Roman family name Antonius is uncertain, perhaps Etruscan. Oxford’s family-name dictionary specifically notes that the later association with Greek anthos, "flower," is a false etymology. Popular glosses such as "priceless," "praiseworthy," or "flower-like" should therefore not be presented as established meanings of Antunes. (Hanks, Coates, and McClure)
Nor does the shared surname establish one Antunes lineage. Medieval patronymics named a relationship and could be created wherever the underlying personal name was used. As these forms became hereditary surnames, the old literal relationship ceased to operate: a person called Antunes no longer needed a father or grandfather named António. The linguistic origin consequently permits more than one family line, while documentary genealogy is required to show whether any two lines actually connect.
Medieval Patronymic and Later Family Name
In medieval Portuguese naming, a patronymic could identify a person through the father’s name rather than function as an unchanging family label. Academic descriptions of archaic Portuguese names show patronymics occupying a second-name position and carrying a live "son or descendant of" sense. Over time, forms in -es were inherited as ordinary surnames and lost that generation-by-generation meaning. (Simões Neto and Soledade)
That chronology matters when reading records. An early occurrence of Antunes may be patronymic in function; a later occurrence may be a stable inherited surname. The spelling alone cannot determine which is true, and no responsibly sourced "first Antunes family" has been identified here. A dated record should be interpreted within its own naming system, locality, and family relationships rather than used as proof that all later bearers descend from its subject.
Antunes, Antúnez, Antão, and António
These related forms are not interchangeable in every record:
- Antunes is the Portuguese-form patronymic discussed on this page.
- Antúnez is a Spanish patronymic from a dialect form of Antonio. It is a close Iberian cognate, but matching meanings do not prove that an Antúnez family and an Antunes family share ancestry.
- Antão is an archaic Portuguese personal name related to António, not merely an alternative spelling of the modern surname.
- António is the personal name underlying the surname; it can also occur independently as a family name.
Accentless Antunez may represent Antúnez in a record system that omits diacritics, but it should not automatically be "corrected" to Antunes. Place, language, relatives, and continuity across records are better evidence than resemblance alone. The Dictionary of American Family Names treats Antunes and Antúnez as distinct Portuguese and Spanish patronymic entries. (Hanks et al.)
Present-Day Distribution: What the Data Show
Antunes is well established beyond Portugal, especially in Brazil. Brazil’s 2022 Census surname release counted 302,373 people with Antunes somewhere in the recorded surname field. The IBGE methodology counts surname components regardless of their order in the full name, so that figure is a census frequency, not an estimate of a single paternal line or clan. (IBGE surname search; IBGE technical note)
The United States provides a smaller documented example of diaspora use. The 2020 U.S. Census surname table records 2,119 people named Antunes. Census counts show where the written surname occurred at that date; they do not by themselves identify when a family migrated or whether its earlier records were Portuguese, Brazilian, Galician, Spanish, or from another Lusophone setting. (U.S. Census Bureau data page; complete last-name table)
References
- Patrick Hanks, Simon Lenarčič, and Peter McClure, eds., Dictionary of American Family Names, 2nd ed. Oxford University Press, 2022, entry "Antunes." Surname entry reproduced by Ancestry.
- Patrick Hanks, Richard Coates, and Peter McClure, eds., The Oxford Dictionary of Family Names in Britain and Ireland. Oxford University Press, 2016, entry "Anthony" (for the uncertain origin of Antonius and the false Greek "flower" derivation). Book preview.
- Porto Editora, Dicionário Infopédia de Nomes Próprios, entry "Antão." Direct dictionary entry.
- Odete Pereira da Silva Menon, "Sobrenomes no feminino e patronímicos em -ez(es): perdas morfológicas em português," Diadorim: Revista de Estudos Linguísticos e Literários, special issue (2013), pp. 65–81. DOI: 10.35520/diadorim.2013.v0n0a4007.
- Carlos Rocha, "A formação dos patronímicos," Ciberdúvidas da Língua Portuguesa, 12 November 2008. Direct article.
- Natival Almeida Simões Neto and Juliana Soledade, "Male Names in X-Son in Brazilian Anthroponymy: A Morphological, Historical, and Constructional Approach," Revista de Estudos da Linguagem 26, no. 3 (2018), pp. 1295–1350. DOI: 10.17851/2237-2083.26.3.1295-1350.
- Instituto Brasileiro de Geografia e Estatística, Censo Demográfico 2022: Nomes no Brasil, surname search and Nota técnica 01/2025, 4 November 2025. Official surname search; official technical note.
- U.S. Census Bureau, Frequently Occurring First Names and Last Names in the 2020 Census, released 14 April 2026. Official data tables and methodology; complete last-name table.