The Defosse surname

In the 2000 U.S. Census, 285 people carried this name — #65,133 among all U.S. surnames, about 1 in every 909,100 people counted.

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In France’s civil register

France’s register of deaths holds 1,243 people named Defosse.

33 of them were born outside France. Those born in France came from 58 départements, most often Pas-de-Calais.

Where it concentrates, on the map

Where they were born

Born outside France 33

Pas-de-Calais 290

Nord 186

Paris 149

Somme 125

Nièvre 57

Oise 51

Aisne 46

Yvelines 39

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 315 people named Defosse 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 Liège.

Where it concentrates, on the map

Where they live today

Liège 120

Namur 93

Antwerp 54

Hainaut 25

Flemish Brabant 7

Luxembourg Province 6

Brussels-Capital 5

Walloon Brabant 5

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

Nearby in the index

Surnames next to Defosse.

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