The Thirion surname
In the 2010 U.S. Census, 302 people carried this name — #65,593 among all U.S. surnames, about 1 in every 1,000,000 people counted. That is up 18% from 257 in 2000.
In France’s civil register
France’s register of deaths holds 2,660 people named Thirion.
73 of them were born outside France. Those born in France came from 83 départements, most often Meurthe-et-Moselle.
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 Belgium’s population register
At least 1,598 people named Thirion 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 mapWhere 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 Thirion.
- Thiery 441 · U.S. census
- Thies 4,240 · U.S. census
- Thiesse 333 · U.S. census
- Thill 3,055 · U.S. census
- Thillet 213 · U.S. census
- Thinnes 471 · U.S. census
- Thiry 1,140 · U.S. census
- Tho 329 · U.S. census
- Thole 1,608 · U.S. census
- Thoma 4,068 · U.S. census
- Thomann 1,034 · U.S. census
- Thomas 756,142 · U.S. census
When the index is not enough
This page says where Thirion 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.