Name Awesome

Cosmas

#9,903 in 2025Boys' name

Order, world, universe

Cosmas has been given to 49 babies in the U.S. since 2012. In 2025 it ranked #9,903 of 13,926 boys’ names in use. Its peak year was 2022, with 11 recorded.

Babies named Cosmas, 2025

1 in 474,000

Cosmas over time, 1880–2025

Boys
05101518801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Cosmas: meaning, origin, and history

Order, world, universe

Ancient Greek

What Cosmas means

Cosmas means “order, world, universe”.

Dictionary etymologyReferences, data & attribution

From Latin Cosmas, from Ancient Greek Κοσμᾶς (Kosmâs), from κόσμος (kósmos). Doublet of Cosmo and related to cosmos.

Excerpt from Wiktionary: Cosmas (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Cosmas is used in English. Its origins include Ancient Greek.

Cosmas comes through Latin Cosmas and Ancient Greek Κοσμᾶς.

Related names and everyday forms

Related names include Cosmo.

Pronunciation and spelling

In English, Cosmas is pronounced /ˈkɔzmɑːs/.

American usage and historical context

In the United States, 49 boys were recorded with the name Cosmas between 2012 and 2025. Its highest annual count was 11 in 2022; its best national rank was #7,355 in 2022.

How common is Cosmas?

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

Among all babies, 2025
1 in 474,000
7 of 3,315,165 births
Among boys only
1 in 244,000
<0.01% of boys
Rank, 2025
#9,903
of 13,926 boys’ names in use
Coin-flip room size
328,272 kids
Even odds of a second one

Where Cosmas 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 328,272 children born in 2025 and it's an even bet that one of them is another Cosmas. In a class of 30 the chance is Under 1%.

When Cosmass were born

Half of everyone ever recorded as Cosmas was born before 2022 — so the typical Cosmas is around 3 today.

Median birth year
2022
About 3 years old
Biggest decade
2020s
69.4% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
49
People you could plausibly meet
Choose a decade

2020s — 69.4% of all recorded uses (34).

Is Cosmas 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
+1,303
Places climbed
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
63.6%
Peak was 2022 (11)
Years since peak
3
Years
Year-to-year steadiness
Volatile
52.8% average annual change
Best rank ever
#7,355
2022

Spellings of Cosmas

Cosmas is not the most common spelling — Tomas is, with 61.1% against Cosmas's 0.10%.

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.

Cosmas around the world

Where Cosmas 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.

  • Ireland
    1965–1965
    #250
    in 1965
  • South Australia
    1958–2010
    #754
    in 2010

Popularity data from Central Statistics Office and Consumer and Business Services (South Australia). CSO, CBS SA data under CC BY 4.0.

Cosmas by the numbers

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

As a boy's name

Rank in 2025
#9,903
Trend vs 5 yrs ago
New entry
Best rank ever
#7,355
2022
Peak year
2022
11 that year
First recorded
2012
Last recorded
2025
All-time count
49
Count in 2025
7

Names similar to Cosmas

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

CosmosCostonCostelloAlmasTommasCostaCossieKosmasCostasCosimoThamasMaximasRomasCosbyCosminDismasRimasArtemasCostnerArmasDumasTamasAcamasCosme

Sibling names for Cosmas

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 Cosmas

Top names of 2022, Cosmas's peak yearThe 2020s in fullOther names that peaked in 2022Boys' names starting with C