Iolo
given name · Latin script
Meaning: A male given name from Welsh: a diminutive of the Welsh name Iorwerth
Recorded for both men and women· direction only, no split published
Iolo is a given name written in the Latin script, most frequently recorded in France.
- SYSyria
- FRFrance
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.
- France (inferred from the name graph)
- Sources
- 11 (measured from records)
no count published
Reference-verified
measured from records inferred from the name graph
Meaning & origin(measured from records)
A male given name from Welsh: a diminutive of the Welsh name Iorwerth.
Sources 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Where in the world(measured from records)
Iolo counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
| Country | Most common spelling | Sources | ||
|---|---|---|---|---|
| FR France | — | — | Iolo | 11 |
| SY Syria | — | — | Iolo | 3 |
| GB United Kingdom | — | listed | — | 3 |
| NL Netherlands | — | listed | — | — |
| DE Germany | — | listed | — | — |
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: the penguin-baby-names-2009 register; the babynamen-king-2020 register; the de-munich-vornamen register. 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)
Iolo 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.
Digno Que tiene una voluntad de hierro
as a name25,000 nombres de bebé. La mejor guía para escoger el nombre adecuado
Welsh: pet form of IORWERTH . Variant: 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)
- Iolo Gochb. 1320GBWelsh bard
- Iolo Aneurin Williamsb. 1890GBBritish journalist, author, art historian and botanist (1890–1962)
- Iolo Ceredig Jonesb. 1947GBWelsh chess player (1947–2021)
- Iolo Williamsb. 1962GBWelsh zoologist, television presenter and writer
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 5 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| DE Germany | Stadt München Open Data — Vornamen von Nulljährigen | 2014 | — | — |
| 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 Iolo mean, and where does it come from?
- A male given name from Welsh: a diminutive of the Welsh name Iorwerth. Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- Is Iolo a male or female name?
- Iolo is recorded for both men and women. We don't publish a percentage split: a record's gender belongs to the person and is attached to every given name on that record, so names in cultures where a name string also carries a parent's or spouse's given name pick up large cross-gender counts.
- What are other forms of the name Iolo?
- In the etymology graph, Iolyn is a form of the same name in other languages.
- In which country does Iolo have the most bearers?
- Iolo is most frequently recorded in France, where it is most often spelled iolo.
What do you want to know about Iolo?
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/ioloThe 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, “Iolo”. Data snapshot 2026-10-10.