Onnie
given name · Latin script
Recorded for both men and women· direction only, no split published
/ɑni/(machine-generated) pronunciation, model-generated
Onnie is a given name written in the Latin script, with more bearers in Finland than in any other country.
- FIFinland1 in 212as Onni(measured from records)
- SESweden1 in 26Kas Onni
- USUnited States1 in 142Kas Onyx
carrying the name, as counted by each country's national register. Where a country counts another spelling of the name rather than Onnie itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- Finland (measured from records)
- 2 (measured from records)
- Sources
- 13 (measured from records)
- 1 in 212 (inferred from the name graph)
26,305 named Onni
recorded for this name
Highest-authority source
Finland, as Onni
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world(measured from records)
Onnie 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 | |||
|---|---|---|---|---|---|
| FI Finland | 26,305as Onni | 1 in 212 | 42K | — | 2 |
| US United States | 2,349as Onyx | 1 in 142K | 1.6K | Onnie | 13 |
| SE Sweden | 388as Onni | 1 in 26K | 388 | — | 2 |
| NL Netherlands | 28as Onyx | 1 in 617K | 21 | — | 1 |
| PL Poland | 15as Onik | 1 in 2.6M | 123 | — | — |
| GY Guyana | 3as Onyx | 1 in 250K | 3 | — | — |
| IS Iceland | 1as Onni | 1 in 351K | 1 | — | — |
26,305 people counted by DVV — Etunimitilasto (Finnish given names register). 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: DVV — Etunimitilasto (Finnish given names register); DVV — Nimipalvelu (Finnish name service, per-name lookup); Census Bureau — First Name Frequency 2020 by sex; Skatteverket — Sök hur många som har ett visst namn (living population); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (surnames); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Guyana — Official List of Electors July 2025; Þjóðskrá Íslands — Name frequencies (NafnTíðni, registry). 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)
Onnie is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Afrikaans, teacher; a person who teaches
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
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)
- Onnie Millarb. 1919USAmerican visual artist (1919–2008)
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 8 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 323 | #19,341 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 225 | #19,341 |
| US United States | SSA — National Baby Names (1880–present) | 1922 | 33 | — |
| US United States | SSA — National Baby Names (1880–present) | 1923 | 32 | — |
| US United States | SSA — National Baby Names (1880–present) | 1918 | 32 | — |
| US United States | SSA — National Baby Names (1880–present) | 1925 | 30 | — |
| US United States | SSA — National Baby Names (1880–present) | 1915 | 30 | — |
| US United States | SSA — National Baby Names (1880–present) | 1927 | 28 | — |
| US United States | SSA — National Baby Names (1880–present) | 1921 | 28 | — |
| US United States | SSA — National Baby Names (1880–present) | 1928 | 26 | — |
| US United States | SSA — National Baby Names (1880–present) | 1915 | 26 | — |
| US United States | SSA — National Baby Names (1880–present) | 1926 | 25 | — |
Reference works 1
- 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
- How do you pronounce Onnie?
- A machine transcription gives /ɑni/ (IPA) for English.
- Is Onnie a male or female name?
- Onnie 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.
- In which country does Onnie have the most bearers?
- In Finland, the national register counted about 26 thousand people named Onni, more than in any other country we hold.
- Where is Onnie most common?
- No national register we hold counts the spelling Onnie itself. The densest figure for its family of spellings is Finland's: the national register counts about 1 in 212 people named Onni.
- How common is the name Onnie?
- In Finland, the national register counted 26,305 people named Onni, about 1 in 212 residents.
What do you want to know about Onnie?
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/onnieThe 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, “Onnie”. Data snapshot 2026-10-10.