Delannoy surname: U.S. census count, rank and records | FamilyCrests

The Delannoy surname

In the 2010 U.S. Census, 213 people carried this name — #87,335 among all U.S. surnames, about 1 in every 1,428,600 people counted. That is up 18% from 181 in 2000.

See Delannoy on the map Look up another surname

Share

In France’s civil register

France’s register of deaths holds 5,780 people named Delannoy.

60 of them were born outside France. Those born in France came from 75 départements, most often Nord.

Where it concentrates, on the map

Where they were born

Born outside France 60
Nord 2,880
Pas-de-Calais 1,726
Paris 268
Somme 200
Oise 127
Yvelines 77
Seine-Maritime 37
Aisne 36

Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.

In Belgium’s population register

At least 685 people named Delannoy live in Belgium.

Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Hainaut.

Where it concentrates, on the map

Where they live today

Hainaut 397
West Flanders 133
Namur 58
Walloon Brabant 32
Brussels-Capital 26
East Flanders 23
Antwerp 10
Flemish Brabant 6

Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.

In Switzerland’s population statistics

53 people named Delannoy live in Switzerland.

They live in 7 of Switzerland’s 26 cantons, most of all in Vaud.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they live today

Vaud 19
Geneva 9
Fribourg 6
Zurich 6
Bern 5
Neuchâtel 5
Basel-Stadt 3

Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.

In Argentina’s national register

At least 27 people named Delannoy live in Argentina.

RENAPER only publishes a name in a province when more than ten people there share it, so the real number is higher. Most of them live in Buenos Aires Province.

Too few records to say where it concentrates region by region — these are plain counts, not shares.

Where they live today

Buenos Aires Province 16
Santa Fe 11

RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.

In print

Delannoy in American newspapers,
1856–1860.

Newspaper page from The Oxford Intelligencer carrying the name Delannoy
The Oxford Intelligencer 1860-08-08
Newspaper page from Pawtucket Gazette And Chronicle carrying the name Delannoy
Pawtucket Gazette And Chronicle 1860-10-05
Newspaper page from The Westerly Echo, & Pawcatuck Advertiser carrying the name Delannoy
The Westerly Echo, & Pawcatuck Advertiser 1856-02-14

Chronicling America, Library of Congress — digitised newspapers in the public domain · 510 pages in all carry the name.

Who carried it

People named Delannoy,
with a public archive behind them.

  • Léopold Delannoy
    Léopold Delannoy 1817–1888 · playwright
  • Victor-Jean-François-Paulin Delannoy
    Victor-Jean-François-Paulin Delannoy 1824–1905 · Catholic priest
  • Aristide Delannoy
    Aristide Delannoy 1874–1911 · artist
  • Marie-Antoine Delannoy 1800–1860 · architect
  • Victor Delannoy 1825–1887 · composer
  • Henri Delannoy 1833–1915 · military personnel

Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.

Nearby in the index

Surnames next to Delannoy.

When the index is not enough

This page says where Delannoy is.
A volume says what happened to it.

Every page in the index is free and stays free. The Heritage Volume is the long form: the full paper trail, the arms, the crossing — bound, and yours.

See what a volume holds
Scroll to Top