The Siano surname
In the 2010 U.S. Census, 1,112 people carried this name — #22,989 among all U.S. surnames, about 1 in every 263,200 people counted. That is down 6% from 1,189 in 2000.
In Argentina’s national register
At least 411 people named Siano 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 Entre Ríos.
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 64 people named Siano.
26 of them were born outside France. Those born in France came from 3 départements, most often Bouches-du-Rhône.
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
48 people named Siano live in Switzerland.
They live in 5 of Switzerland’s 26 cantons, most of all in St. Gallen.
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.
In Poland’s population register
47 people named Siano have a registered home in Poland.
Of the 76 in Poland’s national register, these are the ones with a permanent address on file. They live in 1 of Poland’s 16 voivodeships, most of all in Opole.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
Who carried it
People named Siano,
with a public archive behind them.
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Alice Tittel 1914–1985 · art collector
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Alice Tittel 1914–1985 · art collector
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Silvio Siano 1921–1990 · screenwriter
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Silvio Siano 1921–1990 · screenwriter
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Mike Siano 1963– · rugby union player
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Leopoldo Siano 1964– · screenwriter
Wikidata (CC0) · 9 lives in all are documented under this name.
Nearby in the index
Surnames next to Siano.
- Seys 202 · U.S. census
- Sferrazza 421 · U.S. census
- Sforza 884 · U.S. census
- Sgro 1,165 · U.S. census
- Shaw 160,400 · U.S. census
- Siam 363 · U.S. census
- Sias 3,112 · U.S. census
- Siau 215 · U.S. census
- Sibel 135 · U.S. census
- Sibert 3,545 · U.S. census
- Sibilia 625 · U.S. census
- Sibille 278 · U.S. census
When the index is not enough
This page says where Siano 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.