The Barreto surname
In the 2010 U.S. Census, 10,127 people carried this name — #3,524 among all U.S. surnames, about 1 in every 29,200 people counted. That is up 40% from 7,209 in 2000.
Where the name comes from
The origin of the Barreto surname
Inherited from Old Galician-Portuguese Barreto.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Barreto» (Portuguese), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 41,300 people named Barreto 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 Switzerland’s population statistics
300 people named Barreto 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 France’s civil register
France’s register of deaths holds 65 people named Barreto.
Most of them — 44 — were born outside France. Those born in France came from 10 départements, most often Pyrénées-Orientales.
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 print
Barreto in American newspapers,
1887–1962.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 2,796 pages in all carry the name.
Who carried it
People named Barreto,
with a public archive behind them.
-
Francisco Barreto 1520–1573 · governor -
Isabel Barreto 1567–1612 · sailor -
Francisco Barreto de Meneses 1616–1688 · soldier -
Agostinho Domingos José de Mendonça Rolim de Moura Barreto 1780–1824 · politician -
Nuno José Severo de Mendoça Rolim de Moura Barreto, 1st Duke of Loulé 1804–1875 · military personnel
Wikidata and Wikimedia Commons (CC0) · 204 lives in all are documented under this name.
Nearby in the index
Surnames next to Barreto.
- Barrera 60,998 · U.S. census
- Barrere 312 · U.S. census
- Barrero 704 · U.S. census
- Barres 242 · U.S. census
- Barresi 1,123 · U.S. census
- Barret 1,430 · U.S. census
- Barrett 100,104 · U.S. census
- Barrette 2,969 · U.S. census
- Barri 155 · U.S. census
- Barrial 157 · U.S. census
- Barrie 3,154 · U.S. census
- Barrier 3,002 · U.S. census
When the index is not enough
This page says where Barreto 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.