Donnacha
given name · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
/dɑnətʃə/(machine-generated) pronunciation, model-generated
Donnacha is a given name written in the Latin script, with more bearers in Ireland than in any other country.
- IEIreland≈1 in 19K(inferred from the name graph)
- CHSwitzerland≈1 in 765K
- AUAustralia≈1 in 953K
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
- 61 (measured from records)
- ≈1 in 19K (inferred from the name graph)
≈280 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 2 languages in the etymology graph.
Where in the world(measured from records)
Donnacha 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 | #633 | ≈280 est. | ≈1 in 19K | 121 | Donnacha | 61 |
| AU Australia | — | ≈27 est. | ≈1 in 953K | 1 | Donnacha | 24 |
| GB United Kingdom | — | ≈26 est. | ≈1 in 2.5M | 21 | Donnacha | 33 |
| US United States | — | ≈20 est. | ≈1 in 16M | — | Donnacha | 44 |
| BR Brazil | — | ≈14 est. | ≈1 in 15M | — | Donnacha | 1 |
| CH Switzerland | — | ≈11 est. | ≈1 in 765K | — | Donnacha | 5 |
| DE Germany | — | ≈8 est. | ≈1 in 9.5M | — | Donnacha | 8 |
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); SA BDM — Popular baby names South Australia (1944–present); NISRA — Baby names Northern Ireland full list (1997–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).
Notable people with this name(measured from records)
- Donnacha O'Deab. 1948IEIrish swimmer and poker player
- Donnacha Ó Beacháinb. 1950IEprofessor at Dublin City University, working on post-Soviet affairs and Irish history
- Donnacha Dennehyb. 1970IEIrish composer
- Donnacha Fahyb. 1976IEIrish hurler
- Donnacha Ryanb. 1983IEIrish rugby union player
- Donnacha Walshb. 1984IEIrish Gaelic football player
- Donnacha Codyb. 1985IEIrish hurler
- Donnacha O'Brienb. 1998IEIrish jockey
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)
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)
Attested in 6 sources across 4 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2017 | 136 | #55 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2019 | 121 | #56 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2018 | 116 | #57 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2015 | 112 | #70 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2012 | 106 | #73 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2016 | 101 | #68 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2011 | 100 | #76 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2014 | 92 | #86 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2013 | 91 | #84 |
| IE Ireland | CSO — Irish Babies Names (1998–present) | 2008 | 76 | #100 |
| GB United Kingdom | NISRA — Baby names Northern Ireland full list (1997–present) | 2021 | 32 | #89 |
| GB United Kingdom | NISRA — Baby names Northern Ireland full list (1997–present) | 2023 | 27 | #92 |
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
- How do you pronounce Donnacha?
- A machine transcription gives /dɑnətʃə/ (IPA) for English.
- What are other forms of the name Donnacha?
- In the etymology graph, Donncha, Donnchadh and Donnchad are forms of the same name in other languages.
- Is Donnacha a male or female name?
- Donnacha 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 Donnacha have the most bearers?
- Mondonomo estimates about 277 people named Donnacha in Ireland, more than in any other country we hold, where it is most often spelled donnacha.
- How common is the name Donnacha?
- Mondonomo estimates about 280 people in Ireland have Donnacha as their first given name, about 1 in 19 thousand residents. No national register counts it there; the figure is ours, calibrated against the registers that do.
- How common is Donnacha compared with other names?
- In Ireland, Donnacha is the 633rd most common given name of 14,976 given names recorded there.
What do you want to know about Donnacha?
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/donnachaThe 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, “Donnacha” — the 633rd most common given name in Ireland. Data snapshot 2026-10-10.