Unsen
surname · Latin script
(measured from records)Officially recorded in 3 countries
Unsen is a surname written in the Latin script, with more bearers in Norway than in any other country. In Denmark it is the 26th most common surname. Unsen is also written โอลเซ่น in Thai.
- GLGreenland1 in 34as Olsen(measured from records)
- NONorway1 in 41as Olsen
- DKDenmark1 in 137as Olsen
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Unsen itself, the figure is that spelling’s, and it is named. Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- Norway (measured from records)
- 2 (measured from records)
- Record sources
- 215 (measured from records)
- 1 in 34 (inferred from the name graph)
134,046 named Olsen
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Greenland, as Olsen
measured from records inferred from the name graph
Unsen in other scripts: Latin and Thai
(measured from records)Locally spelled Olesen in NO Norway, US United States, DK Denmark 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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where the surname Unsen is found
(measured from records)Unsen 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| NO Norway | — | 134,046as Olsen | 1 in 41 | 134K | Olesen | 29 |
| US United States | — | 59,356as Olsen | 1 in 5.6K | 59K | Olesen | 215 |
| DK Denmark | #26 | 42,709as Olsen | 1 in 137 | 43K | Olesen | 174 |
| SE Sweden | — | 2,873as Olsen | 1 in 3.6K | 2.9K | Olesen | 41 |
| GL Greenland | — | 1,704as Olsen | 1 in 34 | 1.7K | — | 9 |
134,046 people counted by SSB — Navnesøk (name-search service, living population), counting the spelling olsen. 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: SSB — Navnesøk (name-search service, living population); Census Bureau — Surname Frequency 2010; Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Skatteverket — Sök hur många som har ett visst namn (living population); Statistics Greenland — Surnames (NAXT1). 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)Unsen 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.
In Norwegian Bokmål, definite singular of unse
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Swedish, definite plural of uns
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
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)- Jeannine Unsenb. 1975LULuxembourgish photographer
- Charles UnsenLULuxembourgish politician
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)4 registers and reference works attest this spelling, across 3 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Which countries have the most people with the surname Unsen?
- In Norway, the national register counted about 134 thousand people named Olsen, more than in any other country we hold. After it come United States, Denmark, Sweden and Greenland; the country table on this page ranks them.
- Where is Unsen most common?
- No national register we hold counts the spelling Unsen itself. The densest figure for its family of spellings is Greenland's: the national register counts about 1 in 34 people named Olsen.
- How common is the name Unsen?
- In Norway, the national register counted 134,046 people named Olsen, about 1 in 41 residents.
- How common is Unsen compared with other names?
- In Denmark, Unsen is the 26th most common surname of 88,366 surnames recorded there.
What do you want to know about Unsen?
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/unsenThe 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, “Unsen” — ranked 3rd in Norway (SSB). Data snapshot 2026-10-13.