Dario
Masculine · “holding firm the good”
Dario is the Italian, Spanish and Croatian form of Darius — a name Greek writers gave to the kings of Persia some twenty-five centuries ago, and one that has kept moving ever since. Three open syllables, every letter doing what it looks like it does: DAH-ree-oh. It has stayed in American use across generations without ever crowding a classroom.
How old is the name Dario?
Dario first appears in US birth records in 1909 — 116 years ago. The typical Dario alive today was born around 2004, making them about 21 years old. About 11,000 people named Dario are estimated to be alive in the US today.
When was the name Dario most popular?
Dario peaked in 2024, reaching #639 nationally. Today it ranks #760, 121 places below that high. See the whole 2024 chart.
Dario appears on this list:
Where it comes from
From Dārayavauš to Dario
The story of Dario
The name begins in Old Persian as Dārayavauš, borne by Darius I, who ruled the Achaemenid empire in the late sixth and early fifth centuries BC. Greek historians wrote it as Dareios, Latin turned that into Darius, and from Latin it passed into the Christian naming stock of southern Europe — where Italian, Spanish and Croatian all clipped the ending to Dario. It traveled to the Americas with Italian and Spanish-speaking families, arriving in Spanish most often as Darío, with the accent marking a different stress. The English Darius and the Italian Dario are the same name, one road split in two.
Meaning
holding firm the good; possessing goodness
From Old Persian Dārayavauš, built on a verb meaning to hold or possess plus an element meaning good. The compound is well understood, though it is rendered various ways in English — 'he who holds firm the good' is the closest literal reading.
How the name formed
- Dārayavauš
- Dareios
- Darius
- Darío
- Dario
Related forms: Darius · Darío · Dariusz · Darijo · Dariush · Dareios
Pronouncing Dario
DAH-ree-oh
Stress on the first syllable in Italian and in most American use. The Spanish spelling Darío puts the stress on the second syllable — dah-REE-oh — so families with Spanish-speaking relatives may hear both versions of the same name.
Nicknames for Dario
High
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1909
- Most boys named
- 2023412 — the highest on record
- Peak rank
- #639reached in 2024
- Change vs 2023
- −17.7%339 in 2025, from 412
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Dario in other languages
The same name elsewhere
- Darius in English — same name
- Darío in Spanish — spelling variant
- Dariusz in Polish — same name
- Darijo in Croatian — spelling variant
- Dariush in Persian — same name
- Dareios in Ancient Greek — transliteration
Strongest US states over the last decade: California, Texas, Florida.
Darios among us
people named Dario are estimated to be alive in the US today
About 1 boy in 5,039 born in 2025 was named Dario
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
What happens to a name after it peaks
The Stevan test
Every popular name lives one long story — a climb, a peak, a slow settling back. Dario's later chapters haven't been written yet, so we borrowed them: Stevan climbed just as high around 1953, and its whole arc is on record. Line the two peaks up, and Stevan's path sketches the road Dario is walking now.
Dario sits in the calm middle of the cycle — neither chasing a wave nor sliding off one. Middle-of-the-cycle names age slowly and predictably.
A scored estimate from 146 years of naming cycles — not a prophecy. Great names outlive statistics. How this is scored
Where Dario is headed
Dario looks set to keep climbing gently, with roughly 21% more babies a year by 2030 if the current curve holds.
Medium confidence — fitted on official counts through 2025.
A damped-trend projection of the official birth data — a sketch of momentum, not a promise. Every name's forecast, ranked.
Dario beside its neighbors
The names ranked closest to Dario in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- Reads correctly at first sight for most English speakers: no silent letters, no ambiguous vowels, nothing to spell out twice.
- Works unchanged in Italian, Spanish, Portuguese and Croatian, and has a familiar English cousin in Darius.
- A documented line back to Old Persian, with a meaning that is settled rather than guessed at.
- Recognizable to almost everyone through Darius, while remaining uncommon enough that a child is unlikely to share it with a classmate.
- Dario and Darius get swapped constantly, in both directions. Expect forms, teachers and new acquaintances to reach for the more familiar English form and need correcting.
- If the family uses the Spanish Darío, the accent will vanish from most American paperwork, and the stress will shift with it. Worth deciding early which pronunciation is the household's.
- It rhymes closely with Mario, which some children will notice. It passes quickly, and the name itself gives very little else to work with.
Nobody names a baby alone.
Put Dario to the vote.
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What they receive
Someone added a name to your list
Dario
Masculine · #760 in the U.S.
Frequently asked
- How many Darios are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 11,000 people named Dario are estimated to be alive in the US today.
- How popular is the name Dario in 2025?
- Dario ranks #760 among US boy names in 2025, with 339 babies given the name.
- How rare is the name Dario?
- About 1 in every 5,039 US boys born in 2025 was named Dario — 339 in all.
- Will my child share the name Dario with classmates?
- Dario will almost certainly be the only one in school.
Ranked beside Dario
Names sitting at a similar level of popularity right now.
Mustafa#760 · Ayan#762 · Santos#763 · Magnus#763 · Trace#757 · Campbell#763 · Zyair#757 · Finnley#757
Looking for what else is popular rather than what resembles Dario? See the current top 100.
Choosing between Dario and another name?
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Which one would you pick?
Your gut first, the numbers after — the split shows once you pick.
US figures from the Social Security Administration. 1880–2025. Data & methodology
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