Oisín

given name · Latin script

Meaning: Se Ossian

A male name· listed as male by the registers that count names by sex

(measured from records)Officially recorded in 9 countries · latest register: SCB, 2020

/oizin/(machine-generated) Spanish · model-generated

Say it in

Oisín is a male given name written in the Latin script, with more bearers in Ireland than in any other country.

  • IEIreland≈1 in 3.6K(inferred from the name graph)
  • AUAustralia≈1 in 130Kfew records
  • GBUnited Kingdom≈1 in 180K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

Ireland (inferred from the name graph)

≈1,400 people, est.

Record sources
142 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 3.6K (inferred from the name graph)

Ireland, est.

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Oisin in IE Ireland, GB United Kingdom, US United States and 3 more.

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

(measured from records)

Se Ossian.

Cited for this meaning 1

  • Förnamn i Sverige. Kortfattat namnlexikon

Attested across 18 languages in the etymology graph.

Where in the world

(measured from records)

Oisín 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.

Where Oisín is recorded, by country
CountryMost common spellingSources
IE Ireland#236≈1,400 est.≈1 in 3.6K351Oisin106
US United States—3971 in 838K392Oisin142
GB United Kingdom—≈360 est.≈1 in 181K108Oisin116
AU Australia—≈190 est.≈1 in 135K1Oisin53
DE Germany—≈60 est.≈1 in 1.3MlistedOisin29
SE Sweden—311 in 329K31—5
CH Switzerland—≈26 est.≈1 in 319K—Oisin9

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: CSO — Irish Babies Names (1998–present); NISRA — Baby names Northern Ireland full list (1997–present); Census Bureau — First Name Frequency 2020 by sex; SA BDM — Popular baby names South Australia (1944–present); the de-munich-vornamen register; Skatteverket — Sök hur många som har ett visst namn (living population). 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 names spelled this way

(inferred from the name graph)

Oisín is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Oisin

  • Czech given name3 spellings in the group

    Most recorded in Ireland, United Kingdom

    Languages: Czech, Slovak

    Also written Oisin

  • Latvian given name3 spellings in the group

    Most recorded in Ireland

    Languages: Latvian, Lithuanian

    Also written Oisin

24 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses

(measured from records)

Oisín 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 Irish, a male given name, equivalent to English Ossian

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In mga, fawn (baby deer)

    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)
190019502000Oisín Kelly, b. 1915Oisín Cantwell, b. 1964Oisín McConville, b. 1975Oisín Mullin, b. 2000

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)
InformalHi Oisín,

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)

13 registers and reference works attest this spelling, across 9 countries.

Official registers attesting Oisín
CountryRegisterYearCountRank
IE IrelandCSO — Irish Babies Names (1998–present)2019310#13
IE IrelandCSO — Irish Babies Names (1998–present)2018303#15
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—31#18,744
SE SwedenSCB — Namnstatistik (to 2023)202016—
SE SwedenSCB — Namnstatistik (to 2023)201914—
SE SwedenSCB — Namnstatistik (to 2023)201813—
SE SwedenSCB — Namnstatistik (to 2023)201713—
SE SwedenSCB — Namnstatistik (to 2023)201610—
SE SwedenSCB — Namnstatistik (to 2023)201510—
SE SwedenSCB — Namnstatistik (to 2023)201410—
IE IrelandCSO — Irish Babies Names (1998–present)2017——
SE SwedenSCB — Namnstatistik (to 2023)2013——

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 Oisín?
In Spanish /oizin/. Transcriptions are machine-generated except where a dictionary is named.
Is Oisín a male or female name?
Oisín is a male name. National registers that list it by sex list it as male: Ireland (CSO, 2019).
What does the name Oisín mean, and where does it come from?
Se Ossian. Recorded by Förnamn i Sverige. Kortfattat namnlexikon.
What are other forms of the name Oisín?
In the etymology graph, Osheen is a form of the same name in other languages.
In which country does Oisín have the most bearers?
Mondonomo estimates about 1.4 thousand people named Oisín in Ireland, more than in any other country we hold, where it is most often spelled oisin.
How common is the name Oisín?
In the United States, the national register counted 397 people named Oisín in 2020, about 1 in 838 thousand residents.
How common is Oisín compared with other names?
In Ireland, Oisín is the 236th most common given name of 14,976 given names recorded there.

What do you want to know about Oisín?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/ois%C3%ADn

The 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, “Oisín” — the 236th most common given name in Ireland. Data snapshot 2026-10-13.

See how Oisín parses inside a full name →