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The short answer
Antonio is the Spanish and Italian form of the Roman family name Antonius, the same source as English Anthony. Behind the Name's Anthony entry says Antonius "is of unknown Etruscan origin", and that the popular link to Greek anthos ("flower") is incorrect. Antonio is pronounced an-TOH-nee-oh in English. Behind the Name says it "has been a common name in Italy since the 14th century" and that in Spain "it was the most popular name for boys in the 1950s and 60s". Famous bearers named in the entry include the painter Antonio Pisanello and the composer Antonio Vivaldi, and it is the name of the title character in Shakespeare's The Merchant of Venice. In the United States it ranked #176 for boys in 2025.
Meaning and etymology
Behind the Name gives Antonio as the "Spanish and Italian form of Antonius (see Anthony)", with Croatian usage as well. The Anthony entry explains that Antonius was a Roman family name "of unknown Etruscan origin", best known through the general Marcus Antonius (Mark Antony), and that the name spread through the Christian world because of Saint Anthony the Great and Saint Anthony of Padua. The frequently repeated "flower" meaning comes from a mistaken association with Greek ἄνθος (anthos), which is also why English added the h to Anthony in the 17th century. So the derivation is secure, but the ultimate meaning is unknown.
Editorial confidence: established
Linguistic roots
| Language | Form | Meaning |
|---|---|---|
| Latin | Antonius | Roman family name of unknown Etruscan origin |
| Spanish / Italian | Antonio | vernacular form of Antonius |
Competing or overlapping origins
- The popular gloss "flower", from Greek anthos, is described by Behind the Name as an incorrect association rather than the real origin.
Popularity
Antonio ranked #176 for boys in the United States in 2025 (Social Security Administration). Behind the Name reports that the name has been common in Italy since the 14th century and was the most popular boys' name in Spain in the 1950s and 1960s; those historical claims are reported second-hand and were not checked against national statistics.
| Region | Year | Rank | Source |
|---|---|---|---|
| United States | 2025 | #176 | ssa-2025 |
Nicknames, variants, and related names
Nicknames: Toni, Toño, Antonello, Nello, Tonino, Tonio
Variants: Antony, Antón, Anton, Antonijo, Antun, António, Antônio
Related names: Anthony, Antonius, Antoine, Antoni, Antonín, Antal, Antonis, Antonia
What the name feels like
Antonio is a classic Romance-language name: four syllables, ending in -o, with a warm and expansive sound. In English-speaking countries it reads as distinctly Italian or Spanish while still being instantly familiar, and it carries the cultural weight of Vivaldi, the Renaissance and Shakespeare without feeling dated.
Style tags: four syllables, -o ending, Italian, Spanish, classic, saint's name
Editorial interpretation: These style impressions are editorial judgment, not linguistic fact. The diminutives listed are those Behind the Name records as Spanish and Italian forms.
If you like this name
Names that share Antonio's Latin origin, its Romance-language sound or its classic feel.
Similar by origin
- Anthony
- Anton
- Antoine
- Antonia
Similar by sound
Frequently asked questions
What does the name Antonio mean?
Antonio is the Spanish and Italian form of Antonius, a Roman family name that Behind the Name says is of unknown Etruscan origin. The often-quoted meaning "flower" comes from an incorrect association with Greek anthos.
Is Antonio a popular name?
Antonio ranked #176 for boys in the United States in 2025, according to Social Security Administration data. Behind the Name notes it was Spain's most popular boys' name in the 1950s and 60s.
What are nicknames for Antonio?
Behind the Name lists Toni and Toño (Spanish) and Antonello, Nello, Tonino and Tonio (Italian) as diminutives.
Sources
- Behind the Name: Meaning, origin and history of the name Antonio — supports derivation, pronunciation, usage history, famous bearers, diminutives, variants, related names.
- Behind the Name: Meaning, origin and history of the name Anthony — supports Antonius of unknown Etruscan origin, incorrect anthos association, saints Anthony.
- U.S. Social Security Administration: Popular Baby Names — national data, year of birth 2025 — supports popularity.
