The Santilli surname
In the 2010 U.S. Census, 1,549 people carried this name — #18,018 among all U.S. surnames, about 1 in every 188,700 people counted. That is down 14% from 1,805 in 2000.
In Argentina’s national register
At least 1,618 people named Santilli 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 102 people named Santilli.
45 of them were born outside France. Those born in France came from 14 départements, most often Alpes-Maritimes.
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
33 people named Santilli live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Bern.
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 Santilli,
with a public archive behind them.
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Hugo Santilli 1939– · sports executive -
Antonia Santilli 1949– · actor -
Angelo Santilli 1822–1848 · poet
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Reginaldo Santilli 1908–1981 · theologian
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Reginaldo Santilli 1908–1981 · theologian
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Sabina Santilli 1917–1999 · activist
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Santilli.
- Sante 314 · U.S. census
- Santelli 1,469 · U.S. census
- Santer 230 · U.S. census
- Santerre 720 · U.S. census
- Santi 1,566 · U.S. census
- Santiago 122,212 · U.S. census
- Santin 630 · U.S. census
- Santinelli 126 · U.S. census
- Santini 3,680 · U.S. census
- Santo 4,620 · U.S. census
- Santon 249 · U.S. census
- Santoni 695 · U.S. census
When the index is not enough
This page says where Santilli 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.