Delau
surname · Latin script
Recorded for both men and women· direction only, no split published
Delau is a surname written in the Latin script, with more bearers in Belgium than in any other country.
- BEBelgium1 in 5.9M(measured from records)
- PLPoland1 in 19M
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.
- Belgium (measured from records)
- Sources
- 62 (measured from records)
- 1 in 5.9M (inferred from the name graph)
2 people, 2008
Highest-authority source
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)
Delau 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 | |||
|---|---|---|---|---|---|
| BE Belgium | 2 | 1 in 5.9M | 2 | — | — |
| PL Poland | 2 | 1 in 19M | 2 | — | — |
| FR France | — | — | 1 | Delau | 62 |
| US United States | — | — | listed | Delau | 41 |
| CA Canada | — | — | — | Delau | 3 |
2 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008. 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: INSEE — Fichier des noms de famille (1891–2000); the us-wru-surnames-voterfile register; Familienaam.be — Belgian family-name frequency (population register); dane.gov.pl — PESEL living persons (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).
Notable people with this name(measured from records)
- Olivier Delaub. 1950FRFrench writer
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 7 sources across 4 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1901 | 12 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1931 | 11 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1981 | 8 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | 8 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1911 | 7 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1891 | 7 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1921 | 5 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 4 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1941 | 4 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1971 | 3 | — |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 2 | — |
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 2 | #146,602 |
Reference works 2
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
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 Delau have the most bearers?
- In Belgium, the national register counted about 2 people named Delau, more than in any other country we hold.
- Where is Delau most common?
- Delau is densest in Belgium, where the national register counts about 1 in 5.9 million people carrying it.
- How common is the name Delau?
- In Belgium, the national register counted 2 people named Delau in 2008, about 1 in 5.9 million residents.
What do you want to know about Delau?
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/delauThe 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, “Delau”. Data snapshot 2026-10-10.