Demoor

surname · Latin script

(measured from records)Officially recorded in 5 countries · latest register: Census Bureau, 2020

/dɛmɒː/(machine-generated) pronunciation, model-generated

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

rarermore common
  • USUnited States1 in 1.4M(measured from records)
  • BEBelgium1 in 3.5K
  • FRFrance≈1 in 191K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.

Belgium (measured from records)

3,325 people, 2008

Record sources
96 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 3.5K (inferred from the name graph)

Belgium

measured from records inferred from the name graph

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where in the world

(measured from records)

Demoor 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 Demoor is recorded, by country
CountryMost common spellingSources
BE Belgium3,3251 in 3.5K3.3KDemoor26
FR France≈360 est.≈1 in 191K51—3
US United States2301 in 1.4M239Demoor96
DZ Algeria≈53 est.≈1 in 812K—Demoor1
CA Canada≈50 est.≈1 in 750K—Demoor26
CH Switzerland111 in 764K11——

3,325 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008, counting the spelling de moor. 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: Familienaam.be — Belgian family-name frequency (population register); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; INSEE — Fichier des noms de famille (1891–2000); BFS — Familiennamen der Wohnbevölkerung (surnames). 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)

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

  • French surname2 spellings in the group

    Most recorded in France, Belgium, United States, Spain

    Also written De-Moor

31 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)
18001850190019502000Joseph Demoor, b. 1844Jean Demoor, b. 1867Doodslag op Guido Demoor, b. 1952Jonathan Demoor, b. 1987Joseph DeMoor, b. 1990

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)
FormalDear Demoor,
InformalHello,

Evidence

(measured from records)

11 registers and reference works attest this spelling, across 5 countries.

Reference works 2

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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

How do you pronounce Demoor?
A machine transcription gives /dɛmɒː/ (IPA) for English.
In which country does Demoor have the most bearers?
In Belgium, the national register counted about 3.3 thousand people named Demoor, more than in any other country we hold, where it is most often spelled demoor.
Where is Demoor most common?
Demoor is densest in Belgium, where the national register counts about 1 in 3.5 thousand people carrying it.
How common is the name Demoor?
In Belgium, the national register counted 3,325 people named Demoor in 2008, about 1 in 3.5 thousand residents.

What do you want to know about Demoor?

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

Please leave out anyone's personal details (see Privacy).

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

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, “Demoor”. Data snapshot 2026-10-13.

See how Demoor parses inside a full name →