Østerby

surname · Latin script

(measured from records)Officially recorded in 3 countries

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

rarermore common
  • DKDenmark1 in 11K(measured from records)
  • NONorway1 in 98K
  • SESweden≈1 in 238Kas Österby

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 Østerby 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.

Denmark (measured from records)

558 people

Record sources
38 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 11K (inferred from the name graph)

Denmark

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

2 other spellings are counted as the same name:

Locally spelled Österby in SE Sweden and Osterby in US United States.

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.

Attested across 5 languages in the etymology graph.

Where in the world

(measured from records)

Østerby 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 Østerby is recorded, by country
CountryMost common spellingSources
DK Denmark#5925581 in 11K558Østerby38
NO Norway—561 in 98K56Østerby5
SE Sweden—≈43 est.≈1 in 238K—Österby10
GB United Kingdom—≈1 est.≈1 in 44M—Østerby3
US United States———listedOsterby6

558 people counted by Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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: Danmarks Statistik — Hvor mange hedder...? (living-population name counts); 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).

Other names spelled this way

(inferred from the name graph)

Østerby is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • English surname8 spellings in the group

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

    Languages: English, German

    Also written Osterby, Oesterby, Österby

8 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)
1850190019502000Edmund Østerby, b. 1876Orla Østerby, b. 1952H.C. Østerby, b. 1955Anette Østerby, b. 1959Cecilie Egemose Østerby, b. 1989Fie Østerby, b. 1992

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.

Official registers attesting Østerby
CountryRegisterYearCountRank
DK DenmarkDanmarks Statistik — Hvor mange hedder...? (living-population name counts)—558#758
NO NorwaySSB — Navnesøk (name-search service, living population)—56#24,435

Reference works 1

  • Wikidata name items (native-script + romanized given/family names)

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

In which country does Østerby have the most bearers?
In Denmark, the national register counted about 558 people named Østerby, more than in any other country we hold, where it is most often spelled østerby.
Where is Østerby most common?
Østerby is densest in Denmark, where the national register counts about 1 in 11 thousand people carrying it.
How common is the name Østerby?
In Denmark, the national register counted 558 people named Østerby, about 1 in 11 thousand residents.
How common is Østerby compared with other names?
In Denmark, Østerby is the 592nd most common surname of 88,366 surnames recorded there.

What do you want to know about Østerby?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/%C3%B8sterby

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, “Østerby” — the 592nd most common surname in Denmark. Data snapshot 2026-10-13.

See how Østerby parses inside a full name →