The Bortolotti surname
In the 2010 U.S. Census, 199 people carried this name — #92,358 among all U.S. surnames, about 1 in every 1,428,600 people counted. That is up 8% from 185 in 2000.
In Argentina’s national register
At least 296 people named Bortolotti 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 224 people named Bortolotti.
77 of them were born outside France. Those born in France came from 35 départements, most often Aube.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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
119 people named Bortolotti live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Ticino.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
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.
Who carried it
People named Bortolotti,
with a public archive behind them.
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Ettore Bortolotti 1866–1947 · mathematician -
Ettore Bortolotti 1866–1947 · mathematician
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Giuseppe Bortolotti 1893–1917 · military personnel -
Luigi Bortolotti 1776–1856 · composer
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Francesco Bortolotti 1802–1880
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Pietro Bortolotti 1818–1894 · Egyptologist
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Bortolotti.
- Borriello 382 · U.S. census
- Borron 211 · U.S. census
- Bors 437 · U.S. census
- Borsa 270 · U.S. census
- Bort 680 · U.S. census
- Bortoli 148 · U.S. census
- Bortolussi 179 · U.S. census
- Bory 236 · U.S. census
- Borys 851 · U.S. census
- Bos 3,792 · U.S. census
- Bosca 111 · U.S. census
- Boscardin 100 · U.S. census
When the index is not enough
This page says where Bortolotti 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.