The Gilliard surname
In the 2000 U.S. Census, 3,461 people carried this name — #8,741 among all U.S. surnames, about 1 in every 78,100 people counted.
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In France’s civil register
France’s register of deaths holds 268 people named Gilliard.
12 of them were born outside France. Those born in France came from 32 départements, most often Nord.
Where it concentrates, on the mapWhere they were born
Fichier des personnes décédées, INSEE — Licence Ouverte 2.0 · deaths recorded in France since 1970, by place of birth.
In Switzerland’s population statistics
168 people named Gilliard live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Vaud.
Where it concentrates, on the mapWhere they live today
Swiss Federal Statistical Office (FSO), «Surnames of the permanent resident population by canton», 2025, opendata.swiss · names with fewer than 3 bearers in a canton are not published.
In Belgium’s population register
At least 97 people named Gilliard 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
Nearby in the index
Surnames next to Gilliard.
- Gillen 8,054 · U.S. census
- Giller 986 · U.S. census
- Gilles 3,770 · U.S. census
- Gillet 561 · U.S. census
- Gillette 12,414 · U.S. census
- Gilli 169 · U.S. census
- Gillig 542 · U.S. census
- Gillin 1,259 · U.S. census
- Gillio 205 · U.S. census
- Gillion 488 · U.S. census
- Gillis 18,438 · U.S. census
- Gillmann 111 · U.S. census
When the index is not enough
This page says where Gilliard 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.