Olesen

surname · Latin script

Meaning: a surname originating as a patronymic

Recorded for both men and women· direction only, no split published

Olesen 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.

rarermore common
  • DKDenmark1 in 137as Olsen(measured from records)
  • USUnited States1 in 5.6Kas Olsen
  • CACanada≈1 in 88K

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 Olesen itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Norway (measured from records)

134,046 named Olsen

2 (measured from records)

recorded for this name

Sources
215 (measured from records)

Highest-authority source

≈1 in 88K (inferred from the name graph)

Canada, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

OlesenLatin(measured from records)
โอลเซ่นThai(measured from records)

2 other spellings are 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)

a surname originating as a patronymic

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Olesen 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 Olesen is recorded, by country
CountryMost common spellingSources
NO Norway—134,046as Olsen1 in 41134KOlesen29
US United States—59,356as Olsen1 in 5.6K59KOlesen215
DK Denmark#2642,709as Olsen1 in 13743KOlesen174
SE Sweden—2,873as Olsen1 in 3.6K2.9KOlesen41
GL Greenland—1,704as Olsen1 in 341.7K—9
CA Canada—≈430 est.≈1 in 88K2Olesen47

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); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender. 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)

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

  • English surname6 spellings in the group

    Most recorded in United States, Canada, Australia, United Kingdom

    Languages: English, German, Dutch

    Also written Olésen

  • a separate name2 spellings in the group

    Also written Olesén

  • Ukrainian surname7 spellings in the group

    Most recorded in Ukraine, Russia, United States

    Languages: Ukrainian, Russian

    Also written Олесень, Олесен

41 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)

192019401960198020002020Kjeld Olesen, b. 1932Jens Olesen, b. 1946Annette K. Olesen, b. 1965Henrik Noél Olesen, b. 1968Ole Birk Olesen, b. 1972Allan Arenfeldt Olesen, b. 1982Ronja Mannov Olesen, b. 1987Thorbjørn Olesen, b. 1989Steve Olesen, b. 1993Mathias Olesen, b. 2001

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 28 sources across 16 countries.

Official registers attesting Olesen
CountryRegisterYearCountRank
DK DenmarkDanmarks Statistik — Hvor mange hedder...? (living-population name counts)—21K#25
US United StatesCensus Bureau — Surname Frequency 201020102K#14,881
US United StatesCensus Bureau — Surname Frequency 200020001.9K#14,314
US United StatesCensus Bureau — Surname Frequency 202020201.9K#15,020
NO NorwaySSB — Navnesøk (name-search service, living population)—494#2,784
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—451#2,033
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2019249—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2025247—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2021246—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2020245—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2018244—
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)2022243—

Reference works 5

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 Olesen mean, and where does it come from?
a surname originating as a patronymic Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
In which country does Olesen have the most bearers?
In Norway, the national register counted about 134 thousand people named Olsen, more than in any other country we hold.
How common is the name Olesen?
In Norway, the national register counted 134,046 people named Olsen, about 1 in 41 residents.
How common is Olesen compared with other names?
In Denmark, Olesen is the 26th most common surname of 88,366 surnames recorded there.

What do you want to know about Olesen?

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

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, “Olesen” — the 26th most common surname in Denmark. Data snapshot 2026-10-10.

See how Olesen parses inside a full name →