Ruaidhrí
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Ruaidhrí is a given name written in the Latin script, with more bearers in Ireland than in any other country.
- IEIreland≈1 in 66K(inferred from the name graph)
- GBUnited Kingdom≈1 in 911K
- AUAustralia≈1 in 1.2M
carrying the name, as Mondonomo estimates it from our sources: no national register counts it in these countries. One hue, darker where it is more common; hover a country for its figure.
- Ireland (inferred from the name graph)
- Sources
- 71 (measured from records)
- ≈1 in 66K (inferred from the name graph)
≈78 people, est.
Highest-authority source
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 Ruaidhri in GB United Kingdom, IE Ireland, US United States and 4 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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Sources 1
Attested across 5 languages in the etymology graph.
Where in the world(measured from records)
Ruaidhrí 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 | ||||
|---|---|---|---|---|---|---|
| IE Ireland | #932 | ≈78 est. | ≈1 in 66K | — | Ruaidhri | 40 |
| GB United Kingdom | — | ≈72 est. | ≈1 in 911K | 4 | Ruaidhri | 71 |
| AU Australia | — | ≈21 est. | ≈1 in 1.2M | 1 | Ruaidhri | 16 |
| US United States | — | ≈18 est. | ≈1 in 18M | — | Ruaidhri | 41 |
| BR Brazil | — | ≈12 est. | ≈1 in 18M | — | Ruaidhri | 1 |
| DE Germany | — | ≈8 est. | ≈1 in 11M | — | Ruaidhri | 8 |
| CA Canada | — | ≈3 est. | ≈1 in 11M | — | Ruaidhri | 9 |
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: NISRA — Baby names Northern Ireland full list (1997–present); SA BDM — Popular baby names South Australia (1944–present). 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)
Ruaidhrí 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.
Irish Gaelic: traditional name composed of Old Celtic elements meaning ‘red’ and ‘king’. This was the name of the last high king of Ireland, Rory O'Conor, who reigned 1166–70. Variant: Ruairí. Cognates: Scottish Gaelic: Ruairi(dh), Ruaraidh .
as a word
In Irish, dated spelling of Ruairí
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)
- Rúaidhrí de Valerab. 1916IEIrish archaeologist (1916-1978)
- Ruaidhri Murphyb. 1987IEIrish rugby union player
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)
Attested in 1 sources across 0 countries.
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
- What are other forms of the name Ruaidhrí?
- In the etymology graph, Roderick, Rory and Ruairí are forms of the same name in other languages.
- Is Ruaidhrí a male or female name?
- Ruaidhrí 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 Ruaidhrí have the most bearers?
- Mondonomo estimates about 78 people named Ruaidhrí in Ireland, more than in any other country we hold, where it is most often spelled ruaidhri.
- How common is the name Ruaidhrí?
- Mondonomo estimates about 78 people in Ireland have Ruaidhrí as their first given name, about 1 in 66 thousand residents. No national register counts it there; the figure is ours, calibrated against the registers that do.
- How common is Ruaidhrí compared with other names?
- In Ireland, Ruaidhrí is the 932nd most common given name of 14,976 given names recorded there.
What do you want to know about Ruaidhrí?
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/ruaidhr%C3%ADThe 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, “Ruaidhrí” — the 932nd most common given name in Ireland. Data snapshot 2026-10-10.