The Bertolotti surname
In the 2010 U.S. Census, 368 people carried this name — #55,741 among all U.S. surnames, about 1 in every 833,300 people counted. That is up 1% from 366 in 2000.
In Argentina’s national register
At least 1,393 people named Bertolotti 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 423 people named Bertolotti.
51 of them were born outside France. Those born in France came from 37 départements, most often Alpes-Maritimes.
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
71 people named Bertolotti live in Switzerland.
They live in 9 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 Bertolotti,
with a public archive behind them.
-
Antonino Bertolotti 1834–1893 · writer -
Pellegrino Bertolotti 1430–1493 · surgeon
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Gasparo da Salò 1540–1609 · luthier
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Bernardino Bertolotti 1547–1601 · composer
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Davide Bertolotti 1784–1860 · writer
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Giuseppe Bertolotti 1800–1900 · physician
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Bertolotti.
- Bertoldo 367 · U.S. census
- Bertoli 451 · U.S. census
- Bertolini 1,861 · U.S. census
- Bertolino 871 · U.S. census
- Bertolo 236 · U.S. census
- Bertolone 198 · U.S. census
- Bertolozzi 208 · U.S. census
- Bertolucci 302 · U.S. census
- Berton 756 · U.S. census
- Bertoncini 268 · U.S. census
- Bertone 1,152 · U.S. census
- Bertoni 846 · U.S. census
When the index is not enough
This page says where Bertolotti 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.