Antonios is a Greek masculine given name written Αντώνιος. It is the Greek form of Latin Antonius, the name of an ancient Roman gens (family or clan). That history explains the name's route into Greek, but it does not provide a reliable literal translation: the original meaning of Antonius is unknown, although an Etruscan origin has been proposed.
Meaning and Linguistic Origin
The documented language path is:
*Latin Antonius → Greek Αντώνιος (Antónios)*
The *Oxford Dictionary of Family Names in Britain and Ireland* describes Greek Antōnios as the Greek form of Latin Antonius and calls the Roman name's origin unknown, perhaps Etruscan. The University of Copenhagen's *Dansk Navneleksikon* likewise treats Antonios as a Greek form of Antonius and its deeper meaning as unknown.
This distinction matters. Antonios does not have a securely established word-for-word meaning in Greek. The familiar internet glosses “priceless” and “inestimable” are not demonstrated by these linguistic sources and should not be presented as translations of Αντώνιος.
Why “Flower” Is Not the Original Meaning
A second popular explanation connects the name with Greek ánthos (ἄνθος), “flower.” This is a folk etymology, not the accepted derivation. The Oxford dictionary explains that the h in the later English spelling Anthony arose from a false association with Greek anthos; the older English form Antony and Latin Antonius have no h. The Copenhagen name lexicon also rejects the “flower” derivation on linguistic grounds.
In short, Antonios is Greek in its present form and use, but it was adapted from a Roman family name rather than built from a Greek word meaning “flower.”
Greek Spelling, Stress, and Forms
The modern Greek spelling is Αντώνιος. The accent on ώ marks the stressed syllable, so a stress-marked Romanization is Antónios; without that diacritic it appears as Antonios. Greece's official ELOT 743 name-conversion tool identifies that system as equivalent to ISO 843, while a UK government factfile on Greek romanization explains that ELOT 743 preserves the written stress mark in Romanized Greek.
Closely related forms should be distinguished rather than treated as interchangeable spellings:
- Antonis (Αντώνης) is a Greek variant of Antonios.
- Antonia (Αντωνία) is the Greek feminine form.
- Antonius is the Latin source form.
- Antony and Anthony are English forms; the h in Anthony is not evidence of a different ancient root.
- Antonio, Antoine, and Anton belong to the same international name family in Italian/Spanish/Portuguese, French, and several other European traditions respectively.
The Antonios entry at *Behind the Name* documents the masculine Greek use, spelling Αντώνιος, Antonis as a variant, and Antonia as the feminine form. These are linguistic equivalents or relatives, not proof that records under different forms concern the same individual.
From a Roman Family Name to a Christian Given Name
In Roman naming, Antonius was a family name rather than a descriptive vocabulary word. Marcus Antonius—known in English as Mark Antony—provides the best-known classical example; the *Encyclopaedia Iranica* identifies him as the Roman general of about 82–30 BCE and uses the Latin form M. Antonius in its historical discussion.
The name later acquired a strong Christian association through Antony of Egypt. Samuel Rubenson's *Oxford Classical Dictionary* entry “Antonius Abba, 251?–356 CE” calls him the most important and best-documented figure among the first generations of the fourth-century Egyptian monastic movement. It also makes an important chronological qualification: his death in 356 is well supported, but the traditional birth year 251 is inferred from a hagiographic statement about his age and is less certain.
The Oxford family-name dictionary attributes much of the name's later popularity across Christian societies to the cult of this Egyptian saint. In Greek usage he is Άγιος Αντώνιος (Agios Antonios, “Saint Antonios”), and Greek name-day practice associates Antonios with 17 January. Christian commemoration helps explain the name's endurance, but a bearer of Antonios is not thereby genealogically connected to the saint or to the Roman gens Antonia.
Given Name or Family Name?
Antonios is primarily a given name. It should not be confused with Greek family names formed from the same personal-name base. The Oxford dictionary analyzes:
- Antoniades / Antoniadis as a patronymic surname from Antōnios plus -ades, a form of the classical patronymic suffix -ides; it notes a particular association with Greeks from Asia Minor.
- Antoniou as a Greek surname, typically Cypriot, from an older genitive form of Antonis.
- Antoni in some Greek cases as a shortened family-name form connected with Antonis, Antoniadis, or Antonidakis.
These surnames can historically express a relationship to an ancestor called Antonios or Antonis, but they are not merely spelling variants of the first name. Likewise, a database that places Antonios in a surname field may reflect local naming structure, indexing, or name-order conventions; the label alone does not establish a hereditary surname.
Etymology Is Not Genealogy
The sequence Antonius → Antonios explains the name's linguistic ancestry. It does not show that all people called Antonios share a family line, descend from Mark Antony, or trace their ancestry to Antony of Egypt. The name spread through ordinary naming and Christian commemoration across many unrelated families. Genealogical relationships require documentary evidence about particular people, places, and generations.
References
- Patrick Hanks, Richard Coates, and Peter McClure, eds., *The Oxford Dictionary of Family Names in Britain and Ireland*, Oxford University Press, 2016, entries “Anthony,” “Antoniades,” and “Antoniou.”
- University of Copenhagen, Department of Nordic Studies and Linguistics, “Antonios,” *Dansk Navneleksikon*, accessed 5 August 2026.
- Samuel Rubenson, “Antonius Abba, 251?–356 CE,” *Oxford Classical Dictionary*, Oxford University Press, 2016, doi:10.1093/acrefore/9780199381135.013.8083.
- Marie Louise Chaumont, “Antony, Mark,” *Encyclopaedia Iranica*, vol. II, fasc. 2, pp. 136–138, 1986; updated 2016.
- Hellenic Police, Passport Directorate, “Greek Letter Transcription Based on ELOT 743 Standard”, accessed 5 August 2026.
- UK Permanent Committee on Geographical Names, *Greece: Toponymic Factfile*, UK Government, updated 2026.
- Mike Campbell, “Antonios,” *Behind the Name*, updated 29 May 2020.