Séy
given name · Latin script
Recorded for both men and women· direction only, no split published
Séy is a given name written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Main GB Location (1881): Aberdeens; also. unexplained, probably a variant of Say particularly prevalent in Scotland.
- BEBelgium1 in 90K(measured from records)
- FIFinland1 in 139K
- SESweden1 in 157K
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 100 (measured from records)
- 1 in 90K (inferred from the name graph)
321 people, 2010
Highest-authority source
Belgium
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Sey in US United States, BE Belgium, ES Spain and 1 more.
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)
Main GB Location (1881): Aberdeens; also. unexplained, probably a variant of Say particularly prevalent in Scotland.
Sources 1
- The Oxford Dictionary of Family Names in Britain and Ireland
Attested across 14 languages in the etymology graph.
Where in the world(measured from records)
Séy 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.
321 people counted by Census Bureau — Surname Frequency 2010, 2010. 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 — Surname Frequency 2020; Familienaam.be — Belgian family-name frequency (population register); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Skatteverket — Sök hur många som har ett visst namn (living population); DVV — Nimipalvelu (Finnish name service, per-name lookup); SSB — Navnesøk (name-search service, living population). 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).
Evidence(measured from records)
No register attests this spelling yet
Frequently asked questions
- What does the name Séy mean, and where does it come from?
- Main GB Location (1881): Aberdeens; also. unexplained, probably a variant of Say particularly prevalent in Scotland. Recorded by The Oxford Dictionary of Family Names in Britain and Ireland.
- Is Séy a male or female name?
- Séy 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.
- In which country does Séy have the most bearers?
- In the United States, the national register counted about 321 people named Séy, more than in any other country we hold, where it is most often spelled sey.
- Where is Séy most common?
- Measured as a share of residents rather than as a count, Séy is densest in Belgium — about 1 in 90 thousand people — even though United States holds more of our records for it.
- How common is the name Séy?
- In the United States, the national register counted 321 people named Séy in 2010, about 1 in 1.0 million residents.
What do you want to know about Séy?
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/s%C3%A9yThe 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, “Séy”. Data snapshot 2026-10-10.