Rion

surname · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

/ˈɹaɪən/(machine-generated) pronunciation, model-generated

Rion is a surname written in the Latin script, with more bearers in France than in any other country.

rarermore common
  • USUnited States1 in 494K(measured from records)
  • CHSwitzerland1 in 41K
  • BEBelgium1 in 47K

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.

France (inferred from the name graph)

≈990 people, est.

Sources
229 (measured from records)

Highest-authority source

1 in 41K (inferred from the name graph)

Switzerland

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.

Sources 1

Where in the world(measured from records)

Rion 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.

Where Rion is recorded, by country
CountryMost common spellingSources
FR France≈990 est.≈1 in 68K72—1
US United States6731 in 494K1.2KRion229
AR Argentina2711 in 168K271——
BE Belgium2521 in 47K252Rion19
CH Switzerland2041 in 41K204Rion18
SI Slovenia≈9 est.≈1 in 246K23——

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: Census Bureau — Surname Frequency 2010; Census Bureau — First Name Frequency 2020 by sex; RENAPER — Apellidos (person counts, national); Familienaam.be — Belgian family-name frequency (population register); BFS — Familiennamen der Wohnbevölkerung (surnames); INSEE — Fichier des noms de famille (1891–2000); stat.si Imena rojstva — full name register (per-token frequency + rank). 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 names spelled this way(inferred from the name graph)

Rion is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • French surname4 spellings in the group

    Most recorded in France, Belgium, United States, Switzerland

    Also written Riõn, Ríóņ

  • a separate name2 spellings in the group

    Also written Rión

  • Bangla surname12 spellings in the group

    Most recorded in Bangladesh, United States

    Also written Rio, Río, রিও, Reoo, Ríön

44 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

1700180019002000Antoine Rion, b. 1772Joseph Rion, b. 1804Alphonse Rion, b. 1809François de Barghon Fort-Rion, b. 1832Francis Rion, b. 1933José Luis Rion, b. 1952Anita Rion, b. 1957Núria Rion, b. 1976Chanel Rion, b. 1990

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)

FormalDear Mr Rion,
InformalHi Rion,

Evidence(measured from records)

Attested in 52 sources across 29 countries.

Reference works 4

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia given-name tokens
  • Wikidata name items (native-script + romanized given/family names)
  • jeantosti.com — Dictionnaire des noms de famille de France et d'ailleurs (Jean Tosti)

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 Rion?
A machine transcription gives /ˈɹaɪən/ (IPA) for English.
In which country does Rion have the most bearers?
Mondonomo estimates about 991 people named Rion in France, more than in any other country we hold.
Where is Rion most common?
Measured as a share of residents rather than as a count, Rion is densest in Switzerland — about 1 in 41 thousand people — even though France holds more of our records for it.
How common is the name Rion?
In the United States, the national register counted 673 people named Rion in 2010, about 1 in 494 thousand residents.

What do you want to know about Rion?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/rion

The 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, “Rion”. Data snapshot 2026-10-10.

See how Rion parses inside a full name →