Cosmas
given name · Latin script
Meaning: A male given name from Ancient Greek of mostly historical use
Recorded as a male name· opposite-gender records fall within measured source noise
/cosmas/(machine-generated) pronunciation, model-generated
Cosmas is a given name written in the Latin script, with more bearers in the United States than in any other country.
- USUnited States1 in 1.2M(measured from records)
- NGNigeria≈1 in 32M
- NLNetherlands1 in 118K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 142 (measured from records)
- 1 in 118K (inferred from the name graph)
275 people, 2020
Highest-authority source
Netherlands
measured from records inferred from the name graph
Meaning & origin(measured from records)
A male given name from Ancient Greek of mostly historical use.
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Attested across 7 languages in the etymology graph.
Where in the world(measured from records)
Cosmas counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | — | 275 | 1 in 1.2M | 274 | Cosmas | 142 |
| NL Netherlands | — | 147 | 1 in 118K | 147 | Cosmas | 17 |
| SE Sweden | — | 11 | 1 in 928K | 11 | — | 2 |
| NG Nigeria | — | ≈7 est. | ≈1 in 32M | — | Cosmas | 72 |
| PL Poland | — | 5 | 1 in 7.7M | 5 | — | 1 |
| DK Denmark | — | 3 | 1 in 2M | 3 | — | — |
| GY Guyana | — | 2 | 1 in 375K | 2 | — | 1 |
| MW Malawi | #232 | — | — | — | Cosmas | 6 |
275 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — First Name Frequency 2020 by sex; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Skatteverket — Sök hur många som har ett visst namn (living population); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Guyana — Official List of Electors July 2025. Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Other recorded senses(measured from records)
Cosmas is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In English, pers. name (C. Ndeti)
as a namePronouncing Dictionary of Proper Names
In German, männl. Vom., latinisierende Schrei bung von
as a nameDUDEN Lexikon der Vornamen
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name(measured from records)
- Cosmas Vestitorb. 730Byzantine homiletic
- Cosmas the Priestb. 950Bulgarian priest and writer
- Patriarch Cosmas III of Constantinopleb. 1650GREcumenical Patriarch of Constantinople
- Cosmas Damian Asamb. 1686DEGerman artist (1686-1739)
- Cosmas of Aetoliab. 1714GRsaint in the Greek Orthodox Church
- Cosmas Batubarab. 1938IDIndonesian politician
- Cosmas Zachosb. 1951GRGreek theoretical physicist
- Cosmas Magayab. 1953ZWZimbabwean musician
- Simon Rieberb. 1994TZnot in their usual nameTanzanian visual artist and author (born 1994)
- Cosmas the MonkITmonk, tutor
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
How to address them(machine-generated)
A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence(measured from records)
Attested in 37 sources across 24 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 233 | #86,153 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 228 | #82,613 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 206 | #84,631 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 2
- Wikipedia given-name tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Cosmas mean, and where does it come from?
- A male given name from Ancient Greek of mostly historical use. Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Cosmas?
- A machine transcription gives /cosmas/ (IPA) for Swahili.
- Is Cosmas a male or female name?
- Cosmas is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- What are other forms of the name Cosmas?
- In the etymology graph, Cosmo is a form of the same name in other languages.
- In which country does Cosmas have the most bearers?
- In the United States, the national register counted about 275 people named Cosmas, more than in any other country we hold, where it is most often spelled cosmas.
- Where is Cosmas most common?
- Measured as a share of residents rather than as a count, Cosmas is densest in the Netherlands — about 1 in 118 thousand people — even though United States holds more of our records for it.
- How common is the name Cosmas?
- In the United States, the national register counted 275 people named Cosmas in 2020, about 1 in 1.2 million residents.
- How common is Cosmas compared with other names?
- In Malawi, Cosmas is the 232nd most common given name of 3,102 given names recorded there.
What do you want to know about Cosmas?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/cosmasThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Cosmas” — the 232nd most common given name in Malawi. Data snapshot 2026-10-10.