The Simao surname
In the 2010 U.S. Census, 583 people carried this name — #38,050 among all U.S. surnames, about 1 in every 500,000 people counted. That is up 14% from 510 in 2000.
Where the name comes from
The origin of the Simao surname
From Old Galician-Portuguese Simon, from Latin Simon, from Ancient Greek Σίμων (Símōn), from Hebrew שִׁמְעוֹן.
From Wiktionary, the free dictionary (en.wiktionary.org) — entries «Simao» (English) and «Simão» (Portuguese), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Switzerland’s population statistics
277 people named Simao live in Switzerland.
They live in 14 of Switzerland’s 26 cantons, most of all in Vaud.
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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Argentina’s national register
At least 132 people named Simao 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.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where 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 121 people named Simao.
Most of them — 84 — were born outside France. Those born in France came from 21 départements, most often Nord.
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 Belgium’s population register
At least 24 people named Simao live in Belgium.
Statbel only publishes a name in a municipality when five or more people there share it, so the real number is higher. Most of them live in Antwerp.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
Who carried it
People named Simao,
with a public archive behind them.
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Annelyse Simao 1964– · writer
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Jessica Simao 1994– · association football player
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Luna Simao 1996– · singer
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Rúben Simão 2000– · sport cyclist
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Eduardo Simao 2004– · basketball player
Wikidata (CC0).
Nearby in the index
Surnames next to Simao.
- Silvestrini 234 · U.S. census
- Silvestro 1,147 · U.S. census
- Silvi 211 · U.S. census
- Silvy 111 · U.S. census
- Sima 942 · U.S. census
- Siman 326 · U.S. census
- Simar 412 · U.S. census
- Simard 2,244 · U.S. census
- Simeon 2,690 · U.S. census
- Simeone 2,717 · U.S. census
- Simeoni 105 · U.S. census
- Simet 201 · U.S. census
When the index is not enough
This page says where Simao 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.