Cirilo
Masculine · “Greek kyrios”
Cyrillic is named after a man who did not invent it. Cyril devised the Glagolitic alphabet; the script that carries his name was put together afterwards by his students, out of Greek letters, and given his name in tribute.
How old is the name Cirilo?
Cirilo first appears in US birth records in 1915 — 110 years ago. The typical Cirilo alive today was born around 1983, making them about 42 years old. About 800 people named Cirilo are estimated to be alive in the US today.
When was the name Cirilo most popular?
Cirilo peaked in 1927, reaching #1871 nationally. Today it ranks #10695, 8,824 places below that high. See the whole 1927 chart.
Lists built from the same records:
Where it comes from
From Kyrillos to Cirilo
The story of Cirilo
Sent from Constantinople to Moravia in 863, the brothers Cyril and Methodius set about translating scripture into Slavonic, which required an alphabet. What Cyril made was Glagolitic, a strikingly original script that looks like nothing else and was designed from scratch for the sounds of Slavonic. It was hard to write and hard to print, and within a generation their students in Bulgaria produced a simpler system based on Greek uncials with extra letters borrowed from Glagolitic for the sounds Greek lacked. That system took Cyril's name and is now used by well over two hundred million people across a dozen languages. The original Glagolitic survived in Croatian liturgical use into the twentieth century.
Meaning
Greek kyrios, lord
From Greek Kyrillos, from kyrios, a lord or master. Cirilo is the Spanish and Portuguese form. Cyril and Methodius, ninth-century missionaries to the Slavs, are the source of the name's popularity in eastern Europe. The American peak is 1927.
How the name formed
- Kyrillos
- Cyrillus
- Cirilo
Related forms: Cirilo · Kirill · Cyril
Pronouncing Cirilo
see-REE-loh
Three syllables, stress on the second. The English Cyril is SIR-il with two.
Nicknames for Cirilo
Moderate
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
- 1915
- Most boys named
- 200626 — the highest on record
- Peak rank
- #1871reached in 1927
- Change vs 2022
- −50.0%6 in 2025, from 12
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.
Cirilo in other languages
The same name elsewhere
- Cirilo in Spanish — same name
- Kirill in Russian — same name
- Cyril in English — same name
Cirilos among us
people named Cirilo are estimated to be alive in the US today
About 1 boy in 284,679 born in 2025 was named Cirilo
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 Naaman test
Every popular name lives one long story — a climb, a peak, a slow settling back. Cirilo's later chapters haven't been written yet, so we borrowed them: Naaman climbed just as high around 1912, and its whole arc is on record. Line the two peaks up, and Naaman's path sketches the road Cirilo is walking now.
Cirilo 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
Cirilo beside its neighbors
The names ranked closest to Cirilo in 2025, in babies rather than position — the bars are to scale.
US boys given each name in 2025.
The trade-off
- The Greek meaning is exact and documented.
- The historical figure behind it changed the writing of a continent.
- Three syllables with a clear central stress.
- English and Spanish forms sound quite different.
- It will be heard as Cyril or Carrillo.
- The 1927 peak dates its American use.
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What they receive
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Cirilo
Masculine · #10695 in the U.S.
Frequently asked
- How many Cirilos are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 800 people named Cirilo are estimated to be alive in the US today.
- How popular is the name Cirilo in 2025?
- Cirilo ranks #10695 among US boy names in 2025, with 6 babies given the name.
- How rare is the name Cirilo?
- About 1 in every 284,679 US boys born in 2025 was named Cirilo — 6 in all.
- Will my child share the name Cirilo with classmates?
- Cirilo will almost certainly be the only one in school.
Ranked beside Cirilo
Names sitting at a similar level of popularity right now.
Dudley#10695 · Dell#10695 · Buford#10695 · Toney#10695 · Allison#10695 · Candido#10695 · Jodie#10695 · Nora#10695
Looking for what else is popular rather than what resembles Cirilo? See the current top 100.
Choosing between Cirilo and another name?
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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