The Guglielmetti surname
In the 2010 U.S. Census, 353 people carried this name — #57,639 among all U.S. surnames, about 1 in every 833,300 people counted. That is down 5% from 373 in 2000.
In Argentina’s national register
At least 374 people named Guglielmetti 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.
Where it concentrates, on the mapWhere they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 276 people named Guglielmetti.
42 of them were born outside France. Those born in France came from 35 départements, most often Doubs.
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
227 people named Guglielmetti live in Switzerland.
They live in 9 of Switzerland’s 26 cantons, most of all in Ticino.
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.
Nearby in the index
Surnames next to Guglielmetti.
- Guertin 3,097 · U.S. census
- Guest 9,483 · U.S. census
- Guetta 101 · U.S. census
- Guevara 46,454 · U.S. census
- Gueye 1,274 · U.S. census
- Gugenheim 109 · U.S. census
- Guglielmi 817 · U.S. census
- Guglielmini 111 · U.S. census
- Guglielmino 235 · U.S. census
- Guglielmo 2,078 · U.S. census
- Guhl 679 · U.S. census
- Gui 479 · U.S. census
When the index is not enough
This page says where Guglielmetti 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.