Cosmo
given name · Latin script
Meaning, in Portuguese: cosmos (the universe)
A male name· listed as male by the registers that count names by sex
(measured from records)Officially recorded in 32 countries · latest register: SSA, 2025
/kɔʒmu/(machine-generated) pronunciation, model-generated
Cosmo is a male given name written in the Latin script, with more bearers in Brazil than in any other country.
- BRBrazil1 in 13K(measured from records)
- GBUnited Kingdom≈1 in 118K
- USUnited States1 in 195K
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.
- Brazil (measured from records)
- Record sources
- 236 (measured from records)
- 1 in 13K (inferred from the name graph)
16,619 people, 2022
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Brazil
measured from records inferred from the name graph
Meaning & origin
(measured from records)Italian form (also found as Cosimo) of the Greek name Kosmas (a short form of various names containing the word kosmos ‘order’, ‘beauty’). This was borne by a Christian saint martyred, together with his brother Damian, at
Cited for this meaning 1
- A concise dictionary of first names
Attested across 8 languages in the etymology graph.
How Cosmo is read
(measured from records)Cosmo is one spelling over 2 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.
- Portuguese70%
cosmos (the universe)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
- English21%
A cosmopolitan, a cocktail containing vodka, triple sec, lime juice, and cranberry juice.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
nickname for Cosmopolitan
as a namePronouncing Dictionary of Proper Names
The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.
Often considered alongside
Names that people choosing a name often weigh against Cosmo, most often first. They share a style rather than an origin.
From the names suggested together in public name-advice forums, in English. A list of what people consider, not a measure of how common any name is.
Where in the world
(measured from records)Cosmo 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 | ||||
|---|---|---|---|---|---|---|
| BR Brazil | #803 | 16,619 | 1 in 13K | 18K | Cosmo | 93 |
| US United States | — | 1,704 | 1 in 195K | 1.7K | Cosmo | 236 |
| IT Italy | — | ≈1,600 est. | ≈1 in 40K | 22 | Cosmo | 35 |
| GB United Kingdom | — | ≈560 est. | ≈1 in 118K | 3 | Cosmo | 98 |
| ZA South Africa | — | ≈380 est. | ≈1 in 148K | — | Cosmo | 12 |
| SE Sweden | — | 134 | 1 in 76K | 134 | — | 13 |
| FI Finland | — | 76 | 1 in 73K | 85 | — | 3 |
| GY Guyana | — | 12 | 1 in 63K | 12 | — | 3 |
16,619 people counted by IBGE — names by decade (Kaggle mirror), 2022. 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: IBGE — names by decade (Kaggle mirror); IBGE — Nomes (census name API); Census Bureau — First Name Frequency 2020 by sex; NRS — Baby names Scotland full list (1974–present); ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend); Skatteverket — Sök hur många som har ett visst namn (living population); DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); 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)Cosmo is also recorded in 3 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
Italian form (also found as Cosimo) of the Greek name Kosmas (a short form of various names containing the word kosmos ‘order’, ‘beauty’). This was borne by a Christian saint martyred, together with his brother Damian, at
as a nameA concise dictionary of first names
From Greek. See main dictionary. Also: Cosimo. Feminine form: )}Cosima (see main dictionary).
as a nameA concise dictionary of first names
In Italian, variante medieval de Cosma
as a nameDicionário dos sobrenomes italianos
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)- Cosmo Gordon, 3rd Duke of Gordonb. 1720British peer (1720-1752)
- Cosmo Alexanderb. 1724GBScottish painter (1724-1772)
- Cosmo Innesb. 1798GBBritish academic
- Cosmo Duff-Gordonb. 1862GBScottish landowner and fencer (1862–1931)
- Cosmo Gordon Langb. 1864GBBritish archbishop and clergyman (1864-1945)
- Cosmo Hamiltonb. 1870GBEnglish novelist and playwright (1870–1942)
- Cosmo Haskardb. 1916GBIrish-born British colonial administrator and retired British Army officer (1916-2017)
- Cosmo Francesco Ruppib. 1932ITArchbishop of the Roman Catholic Archdiocese of Lecce (1932-2011)
- Anthony Calleab. 1982AUnot in their usual nameAustralian singer
- Cosmo Jarvisb. 1989USAmerican actor and musician
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)66 registers and reference works attest this spelling, across 32 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Nomes (census name API) | — | 18K | #1,479 |
| BR Brazil | IBGE — names by decade (Kaggle mirror) | 2022 | 17K | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 16K | #1,200 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 1.7K | #8,501 |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 175 | #1,200 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 134 | #6,983 |
| FI Finland | DVV — Nimipalvelu (Finnish name service, per-name lookup) | — | 85 | #3,375 |
| US United States | SSA — National Baby Names (1880–present) | 2025 | 80 | — |
| FI Finland | DVV — Etunimitilasto (Finnish given names register) | — | 76 | — |
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | 2020 | 52 | — |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 42 | #8,501 |
| SE Sweden | SCB — Namnstatistik (to 2023) | 2020 | 35 | — |
Reference works 4
- Dictionary of American Family Names
- Wikipedia given-name tokens
- Wikipedia surname 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
- Where does the name Cosmo come from?
- Italian form (also found as Cosimo) of the Greek name Kosmas (a short form of various names containing the word kosmos ‘order’, ‘beauty’). Recorded by A concise dictionary of first names.
- Is Cosmo a male or female name?
- Cosmo is a male name. National registers that list it by sex list it as male: Brazil (IBGE) and United States (Census Bureau, 2020).
- What does the name Cosmo mean?
- In Portuguese, cosmos (the universe)
- What are other forms of the name Cosmo?
- In the etymology graph, Cosme, Cosmin and Cosimo are forms of the same name in other languages.
- In which country does Cosmo have the most bearers?
- In Brazil, the national register counted about 17 thousand people named Cosmo, more than in any other country we hold, where it is most often spelled cosmo.
- Where is Cosmo most common?
- Cosmo is densest in Brazil, where the national register counts about 1 in 13 thousand people carrying it.
- How common is the name Cosmo?
- In Brazil, the national register counted 16,619 people named Cosmo in 2022, about 1 in 13 thousand residents.
- How common is Cosmo compared with other names?
- In Brazil, Cosmo is the 803rd most common given name of 474,894 given names recorded there.
- How do you pronounce Cosmo?
- A machine transcription gives /kɔʒmu/ (IPA) for Portuguese.
What do you want to know about Cosmo?
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/cosmoThe 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, “Cosmo” — the 803rd most common given name in Brazil. Data snapshot 2026-10-13.