Reio
surname · Latin script
(measured from records)Officially recorded in 7 countries
Reio is a surname written in the Latin script, most frequently recorded in Finland. Recorded meaning: Variant of Reigo, shortened from Gregor (“Gregory”). Cognate with Finnish Reijo.
- Finland (inferred from the name graph)
- Record sources
- 2 (measured from records)
no count published
corpus datasets behind its best-documented spelling
strongest: reference-verified
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
(measured from records)Variant of Reigo, shortened from Gregor (“Gregory”). Cognate with Finnish Reijo.
Cited for this meaning 1
Attested across 2 languages in the etymology graph.
Where in the world
(measured from records)Reio 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 | ||
|---|---|---|---|
| FI Finland | — | 81 | — |
| BR Brazil | — | 29 | — |
| SE Sweden | — | 7 | — |
| LV Latvia | — | 2 | — |
| VC St. Vincent & Grenadines | — | 1 | — |
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: DVV — Nimipalvelu (Finnish name service, per-name lookup); IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); Skatteverket — Sök hur många som har ett visst namn (living population); PMLP — Personu vārdi (given names in population register); Electoral Office of St Vincent & the Grenadines — Final Voters List (Nov 2025). 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)- Lembitu Reiob. 1924SEEstonian biochemist (1924-2017)
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)Evidence
(measured from records)10 registers and reference works attest this spelling, across 7 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Reio mean, and where does it come from?
- Variant of Reigo, shortened from Gregor (“Gregory”). Cognate with Finnish Reijo. Recorded by Wiktionary.
- In which country does Reio have the most bearers?
- Reio is most frequently recorded in Finland.
What do you want to know about Reio?
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/reioThe 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, “Reio” — ranked 3537th in Finland (DVV). Data snapshot 2026-10-13.