Fiachra

given name · Latin script

Meaning: Perhaps from fiach, ‘raven’; possibly the original name of St Fiacre (d

Recorded as a male name· opposite-gender records fall within measured source noise

(measured from records)Officially recorded in 1 country · latest register: NISRA, 2025

Fiachra is a male given name written in the Latin script, most frequently recorded in Ireland.

  • IEIreland
  • AUAustralia
  • GBUnited Kingdom

Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.

Meaning & origin

(measured from records)

Perhaps from fiach, ‘raven’; possibly the original name of St Fiacre (d. c. 670), later used for a type of coach in Paris.

Cited for this meaning 1

  • Irish first names

Attested across 2 languages in the etymology graph.

Often considered alongside

Names that people choosing a name often weigh against Fiachra, 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)

Recorded in:

No national register we accept counts this name’s bearers, so the page lists where it is found and publishes no figure.

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)

Fiachra 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.

  • Traditional Irish Gaelic name derived from fiach ‘hunt’ + ri‘king’. This was the name in Irish legend of one of the children of Lir, who were turned into swans by their stepmother. In historical times, it was borne by an Irish saint and missionary in France (died 670 at Meaux). An inn was named after him, which in turn gave its name to the fiacre, a type of horse-drawn four-wheeled hackney cab.

    as a nameA concise dictionary of first names

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)
19201940196019802000Fiachra Ó Ceallaigh, b. 1933Fiachra Trench, b. 1941Fiachra McArdle, b. 1983Fiachra Breathnach, b. 1986Fiachra Lynch, b. 1987

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).

Evidence

(measured from records)

4 registers and reference works attest this spelling, across 1 country.

Official registers attesting Fiachra
CountryRegisterYearCountRank
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202222#115
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202019#132
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202117#143
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202516#143
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)201916#153
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)201815#161
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)201714#171
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202413#164
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)202311#189
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)20079#209
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)20059#192
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)20148#243

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

Where does the name Fiachra come from?
Perhaps from fiach, ‘raven’; possibly the original name of St Fiacre (d. c. 670), later used for a type of coach in Paris. Recorded by Irish first names.
What does the name Fiachra mean?
Recorded meaning: Perhaps from fiach, ‘raven’; possibly the original name of St Fiacre (d.
Is Fiachra a male or female name?
Fiachra 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 Fiachra have the most bearers?
Fiachra is most frequently recorded in Ireland.

What do you want to know about Fiachra?

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

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, “Fiachra”. Data snapshot 2026-10-13.

See how Fiachra parses inside a full name →