Diarmuid
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Diarmuid is a given name written in the Latin script, with more bearers in Ireland than in any other country.
- IEIreland≈1 in 4.5K(inferred from the name graph)
- GBUnited Kingdom≈1 in 180K
- USUnited States≈1 in 1.4M
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Ireland (inferred from the name graph)
- Sources
- 132 (measured from records)
- ≈1 in 4.5K (inferred from the name graph)
≈1,100 people, est.
Highest-authority source
Ireland, est.
measured from records inferred from the name graph
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 4 languages in the etymology graph.
Where in the world(measured from records)
Diarmuid 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 | #283 | ≈1,100 est. | ≈1 in 4.5K | 47 | Diarmuid | 116 |
| GB United Kingdom | — | ≈370 est. | ≈1 in 180K | 3 | Diarmuid | 123 |
| US United States | — | ≈240 est. | ≈1 in 1.4M | 6 | Diarmuid | 132 |
| AU Australia | — | ≈190 est. | ≈1 in 133K | 2 | Diarmuid | 71 |
| DE Germany | — | ≈74 est. | ≈1 in 1.1M | — | Diarmuid | 31 |
| CH Switzerland | — | ≈26 est. | ≈1 in 319K | — | Diarmuid | 10 |
| PT Portugal | — | ≈21 est. | ≈1 in 491K | — | Diarmuid | 9 |
| SE Sweden | — | 12 | 1 in 850K | 12 | Diarmuid | 10 |
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); SSA — National Baby Names (1880–present); NISRA — Baby names Northern Ireland full list (1997–present); SA BDM — Popular baby names South Australia (1944–present); 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).
Notable people with this name(measured from records)
- Diarmait Mac Murchadab. 1110IEnot in their usual nameKing of Leinster in Ireland
- Conor Cruise O'Brienb. 1917IEnot in their usual nameIrish politician, writer, historian and academic (1917-2008)
- Jonathan Spenceb. 1936USnot in their usual nameBritish-born historian
- Sam Neillb. 1947NZnot in their usual nameNew Zealand actor (1947–2026)
- Dermot Crowleyb. 1947IEnot in their usual nameIrish actor
- Dermot Morganb. 1952IEnot in their usual nameIrish actor (1952–1998)
- Diarmaid Murtaghb. 1953IEnot in their usual nameIrish actor
- Dermot Mulroneyb. 1963USnot in their usual nameAmerican actor
- Dermot O'Learyb. 1973IEnot in their usual nameEnglish television presenter
- Dermot Kennedyb. 1991IEnot in their usual nameIrish singer-songwriter
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 14 sources across 10 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2007 | 85 | #82 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2005 | 84 | #77 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2002 | 75 | #77 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2006 | 69 | #91 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2004 | 68 | #87 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2001 | 67 | #83 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2010 | 65 | #112 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2000 | 62 | #84 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2003 | 56 | #97 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 1999 | 51 | #94 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2011 | 49 | #143 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2017 | 47 | #133 |
Reference works 2
- Wikipedia given-name tokens
- 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
- Is Diarmuid a male or female name?
- Diarmuid 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.
- What are other forms of the name Diarmuid?
- In the etymology graph, Dermot, Diarmaid and Diarmad are forms of the same name in other languages.
- In which country does Diarmuid have the most bearers?
- Mondonomo estimates about 1.1 thousand people named Diarmuid in Ireland, more than in any other country we hold, where it is most often spelled diarmuid.
- How common is the name Diarmuid?
- In Sweden, the national register counted 12 people named Diarmuid, about 1 in 850 thousand residents.
- How common is Diarmuid compared with other names?
- In Ireland, Diarmuid is the 283rd most common given name of 14,976 given names recorded there.
What do you want to know about Diarmuid?
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/diarmuidThe 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, “Diarmuid” — the 283rd most common given name in Ireland. Data snapshot 2026-10-10.