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Cirilo

#10,925 in 2025Boys' name

Form of Cyril

Cirilo has been given to 1,128 babies in the U.S. since 1915. In 2025 it ranked #10,925 of 13,926 boys’ names in use. Its peak year was 2006, with 26 recorded.

Babies named Cirilo, 2025

1 in 553,000

Cirilo over time, 1880–2025

Boys
010203018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Cirilo: meaning, origin, and history

Form of Cyril

Deeper origin not confirmed in the cited records

What Cirilo means

Cirilo is a form of Cyril.

Meaning behind the documented name family

The name developed through Cirilo → Cyril. The family’s meaning is “lord, master”, recorded in English with the source elements kúrios.

Origin, language, and formation

Cirilo is used in Portuguese and Spanish.

Cirilo comes through Late Latin Cȳrillus and Ancient Greek Κύριλλος.

Related names and everyday forms

Related names include Cyril.

Pronunciation and spelling

In Portuguese, Cirilo is pronounced /siˈɾi.lu/.

American usage and historical context

In the United States, 1,128 boys were recorded with the name Cirilo between 1915 and 2025. Its highest annual count was 26 in 2006; its best national rank was #1,879 in 1927.

Over 10 years its rank fell, from #8,161 in 2015 to #10,925 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Cirilo?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 553,000
6 of 3,315,165 births
Among boys only
1 in 285,000
<0.01% of boys
Rank, 2025
#10,925
of 13,926 boys’ names in use
Coin-flip room size
382,984 kids
Even odds of a second one

Where Cirilo sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 382,984 children born in 2025 and it's an even bet that one of them is another Cirilo. In a class of 30 the chance is Under 1%.

When Cirilos were born

Half of everyone ever recorded as Cirilo was born before 1981 — so the typical Cirilo is around 44 today.

Median birth year
1981
About 44 years old
Biggest decade
1990s
15.3% of all use
Born in the last 25 years
22.0%
Spread across generations
Recorded since 1950
838
People you could plausibly meet
Choose a decade

1990s — 15.3% of all recorded uses (173).

Is Cirilo rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
−2,764
Places dropped
Births vs 10 years ago
0.67×
Fewer babies than then
Share of its own peak
23.1%
Peak was 2006 (26)
Years since peak
19
Years
Year-to-year steadiness
Volatile
38.4% average annual change
Best rank ever
#1,879
1927

Spellings of Cirilo

Cirilo is not the most common spelling — Carlo is, with 39.1% against Cirilo's 2.8%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Cirilo is used

Across 1910–2025, Cirilo was most concentrated in Texas — about 1 in 50,000 boys, against 1 in 81,207 across all states with data. It was least common in California (1 in 100,000).

12 per 100,000

Most concentrated

  1. 1Texas1 in 50,000
  2. 2California1 in 100,000

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Cirilo has too little recent state data to map, so this covers all years from 1910.

Cirilo by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#10,925
Trend vs 5 yrs ago
New entry
Best rank ever
#1,879
1927
Peak year
2006
26 that year
First recorded
1915
Last recorded
2025
All-time count
1,128
Count in 2025
6

Names similar to Cirilo

Matched on shared beginnings and endings, similar length, and comparable popularity.

ShiloCiroKamiloKailoDaniloCirePhiloTeofiloCamiloMuriloNiloEmiloMihailoHermiloMailoPanfiloCiriacoKiloKhailoMikhailoCirrusRiloSiloCirildo

Sibling names for Cirilo

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Cirilo

Top names of 2006, Cirilo's peak yearThe 2000s in fullOther names that peaked in 1927Boys' names starting with C