Erinn
Feminine · “Ireland”
Erinn is given to both — 3,418 girls and 143 boys since 1880. See other names given to both
The doubled n in Erinn is not an American flourish. It comes straight out of the Irish spelling, where the word for Ireland takes an extra n when it changes case — and the form English borrowed as Erin is that inflected form, not the plain one.
How old is the name Erinn?
Erinn first appears in US birth records in 1963 — 62 years ago. The typical Erinn alive today was born around 1986, making them about 39 years old. About 3,300 people named Erinn are estimated to be alive in the US today.
When was the name Erinn most popular?
Erinn peaked in 1977, reaching #1088 nationally. See the whole 1977 chart.
Lists built from the same records:
Where it comes from
From Eire to Erinn
The story of Erinn
Irish nouns change their endings depending on what they are doing in a sentence, and the country's name is no exception: Eire in the plain form, Eireann when it follows certain words. English speakers met the second form far more often than the first, in phrases and in songs, and took it as the name. That is why Erin looks nothing like Eire and why the second n keeps reappearing in spellings — Erinn, Erina, Eirinn — as though English half-remembers where it came from. The name has never been used in Ireland the way it is used in America; there it stays the name of the country.
Meaning
Ireland
The Irish name for the country is Eire. Erin comes from a case form of it, the one used after certain prepositions, so the English name is grammatically a fragment rather than the country's name in its ordinary shape.
How the name formed
- Eire
- Eireann
- Erin
- Erinn
Related forms: Eireann · Erin
Pronouncing Erinn
AIR-in
Two syllables with the weight at the front. The doubled n changes nothing; Erin and Erinn are said identically.
Nicknames for Erinn
Moderate
What the data says
146 years of official birth records
The long climb, and where it stands now
The same years in position rather than babies
- First recorded
- 1963
- Most girls named
- 1990156 — the highest on record
- Peak rank
- #1088reached in 1977
- Change vs 2019
- −30.8%9 in 2020, from 13
Rank is a position, a count is a headcount, and they move independently — a name can hold its rank while the number of babies behind it falls. Source: U.S. Social Security Administration.
Erinn in other languages
The same name elsewhere
- Eireann in Irish — related form
- Erin in English — spelling variant
Erinns among us
people named Erinn are estimated to be alive in the US today
Estimated from SSA birth records and published actuarial life tables. Method
Is it right for you
Questions parents actually ask
Fashion outlook
Erinn sits outside the current charts, and that is its own kind of answer: naming cycles can only date the names they carried up. A name this rare has no decade stamped on it — it cannot go out of fashion, because it was never in.
Based on 146 years of naming cycles. How we read them
The trade-off
- It is said correctly at sight by anyone who has met the commoner spelling.
- The extra n has a real justification in the Irish, which most respellings cannot claim.
- Five letters, two syllables, and nothing that needs explaining.
- Erin is the standard spelling and will be written instead on almost every form.
- In Ireland the word is the country's name rather than a person's, and Irish people will say so.
- The spelling is recorded for boys as well as girls in the United States.
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Erinn
Feminine
Frequently asked
- How many Erinns are there in the world?
- No country counts the world's names, so there is no worldwide figure — anyone quoting one is estimating. About 3,300 people named Erinn are estimated to be alive in the US today.
- How popular is the name Erinn in 2025?
- Erinn is rarely given in the US today — it does not rank in the top 2000 girl names.
- Will my child share the name Erinn with classmates?
- Erinn will almost certainly be the only one in school.
More E names
The most-given names starting with E, all years combined.
Elizabeth#17 · Emily#34 · Emma#3 · Evelyn#8 · Ella#29 · Eleanor#12 · Erin#833 · Edna#2458
Looking for what else is popular rather than what resembles Erinn? See the current top 100.
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US figures from the Social Security Administration. 1880–2025. Data & methodology
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