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Kyrillos

#9,363 in 2025Boys' name

Form of Cyril

Kyrillos has been given to 255 babies in the U.S. since 1993. In 2025 it ranked #9,363 of 13,926 boys’ names in use. Its peak year was 2013, with 20 recorded.

Babies named Kyrillos, 2025

1 in 414,000

Kyrillos over time, 1880–2025

Boys
0510152018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Kyrillos: meaning, origin, and history

Form of Cyril

Deeper origin not confirmed in the cited records

What Kyrillos means

Kyrillos is a form of Cyril.

Meaning behind the documented name family

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

Related names and everyday forms

Related names include Cyril.

American usage and historical context

In the United States, 255 boys were recorded with the name Kyrillos between 1993 and 2025. Its highest annual count was 20 in 2013; its best national rank was #4,728 in 2013.

Over 5 years its rank rose, from #11,399 in 2020 to #9,363 in 2025. Over 10 years its rank fell, from #6,905 in 2015 to #9,363 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 Kyrillos?

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

Among all babies, 2025
1 in 414,000
8 of 3,315,165 births
Among boys only
1 in 213,000
<0.01% of boys
Rank, 2025
#9,363
of 13,926 boys’ names in use
Coin-flip room size
287,238 kids
Even odds of a second one

Where Kyrillos 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 287,238 children born in 2025 and it's an even bet that one of them is another Kyrillos. In a class of 30 the chance is Under 1%.

When Kyrilloss were born

Half of everyone ever recorded as Kyrillos was born before 2013 — so the typical Kyrillos is around 12 today.

Median birth year
2013
About 12 years old
Biggest decade
2010s
50.6% of all use
Born in the last 25 years
89.0%
A modern name
Recorded since 1950
255
People you could plausibly meet
Choose a decade

2010s — 50.6% of all recorded uses (129).

Is Kyrillos 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
+2,397
Places climbed
Rank vs 5 years ago
+2,036
Places climbed
Rank vs 10 years ago
−2,458
Places dropped
Births vs 10 years ago
0.67×
Fewer babies than then
Share of its own peak
40.0%
Peak was 2013 (20)
Years since peak
12
Years
Year-to-year steadiness
Volatile
38.3% average annual change
Best rank ever
#4,728
2013

Where Kyrillos is used

Across 1910–2025, Kyrillos was most concentrated in California — about 1 in — boys, against 1 in 889,477 across all states with data. It was least common in New Jersey (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2New Jersey1 in —

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. Kyrillos has too little recent state data to map, so this covers all years from 1910.

Kyrillos around the world

Where Kyrillos ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • Canada
    2024–2024
    #3,231
    in 2024

Popularity data from Statistics Canada. StatCan data under Statistics Canada Open Licence.

Kyrillos by the numbers

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

As a boy's name

Rank in 2025
#9,363
Trend vs 5 yrs ago
Up 2,036
Best rank ever
#4,728
2013
Peak year
2013
20 that year
First recorded
1993
Last recorded
2025
All-time count
255
Count in 2025
8

Names similar to Kyrillos

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

KyrollosKyriakosKyreeseKyrieeKyreseKyrianAngelosApollosKyrionNickalosKyrosKyrellDecarlosKyrusNichalosKyrisApostolosNicklosKyrienKyrynNikolosJoncarlosKyriJancarlos

Sibling names for Kyrillos

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 Kyrillos

Top names of 2013, Kyrillos's peak yearThe 2010s in fullOther names that peaked in 2013Boys' names starting with K