Iorwerth
given name · Latin script
Meaning: from the Welsh personal name Iorwerth; earliest cited as Iorwerth (or Gervase), abbot of Talley and bishop of St David's, 1215-1229
Recorded as a male name· opposite-gender records fall within measured source noise
/iɔɹwɝθ/(machine-generated) pronunciation, model-generated
Iorwerth is a given name written in the Latin script, most frequently recorded in the United Kingdom.
- GBUnited Kingdom
- AUAustralia
- ARArgentina
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)
from the Welsh personal name Iorwerth; earliest cited as Iorwerth (or Gervase), abbot of Talley and bishop of St David's, 1215-1229
Sources 1
- Welsh Surnames
Attested across 2 languages in the etymology graph.
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)
Iorwerth is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Welsh, From Welsh personal name Iorwerth; earliest cited spellings on page include Byolin (1601) and Boyling (1757).
as a nameWelsh Surnames
In Welsh, From the Welsh personal name Iorwerth; earliest citation 1301-2, yorworth ab Madok.
as a nameWelsh Surnames
Welsh traditional name, pronounced ‘yor-werth’; derived from i6r ‘lord’ + a mutated form of berth ‘handsome’. It is borne in the Mabinogi by the jealous brother of Madawg, son of Maredudd. Iorwerth came to be regarded as a Welsh form of Edward, but it has no actual connection with that name. Variant: Yorath. Pet form: Iolo.
as a nameA concise dictionary of first names
Welsh: traditional name composed of the elements i r lord + a mutated form of berth handsome. It is borne in the Mabinogi by the jealous brother of Madawg, son of Maredudd. Iorwerth came to be regarded as a Welsh form of EDWARD , but in origin it had no connection with that name. Variant: Yorath. Pet forms: IOLO , Iolyn .
as a word
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)
- Iorwerthb. 1101Welsh bishop
- Iorwerth Fychanb. 1250GBWelsh poet
- Iorwerth ab y Cyriogb. 1400GBWelsh poet
- Iorwerth Thomasb. 1895GBBritish politician (1895-1966)
- Iorwerth Peateb. 1901GBWelsh writer; founder of the Welsh Folk Museum (1901-1982)
- Iorwerth Jonesb. 1903GBWelsh rugby union and rugby league footballer
- Iorwerth Evansb. 1906GBWelsh rugby union player
- Iorwerth Eiddon Stephen Edwardsb. 1909GBBritish egyptologist
- Iorwerth Hughesb. 1925GBBritish association football player (1925-1993)
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 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| GB United Kingdom | A Concise Dictionary of First Names (Hanks & Hodges, 2001) | — | — | — |
| NL Netherlands | Babynamen — Lijst met meer dan 22.000 namen (Amelia King, 2020) | — | — | — |
| GB United Kingdom | The Penguin Book of Baby Names (David Pickering) | — | — | — |
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
- What does the name Iorwerth mean, and where does it come from?
- from the Welsh personal name Iorwerth; earliest cited as Iorwerth (or Gervase), abbot of Talley and bishop of St David's, 1215-1229 Recorded by Welsh Surnames.
- How do you pronounce Iorwerth?
- A machine transcription gives /iɔɹwɝθ/ (IPA) for English.
- Is Iorwerth a male or female name?
- Iorwerth 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 Iorwerth?
- In the etymology graph, Iolo and Iolyn are recorded short or pet forms.
- In which country does Iorwerth have the most bearers?
- Iorwerth is most frequently recorded in the United Kingdom.
What do you want to know about Iorwerth?
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/iorwerthThe 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, “Iorwerth”. Data snapshot 2026-10-10.