The Massi surname
In the 2010 U.S. Census, 701 people carried this name — #32,750 among all U.S. surnames, about 1 in every 416,700 people counted. That is down 7% from 751 in 2000.
In Argentina’s national register
At least 869 people named Massi 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 78 people named Massi.
20 of them were born outside France. Those born in France came from 10 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
27 people named Massi live in Switzerland.
They live in 5 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.
In the Nordic population registers
81 people named Massi is counted in Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published.
Counted, by country
Own calculations based on data from Statistics Sweden (SCB), surnames with at least two bearers, 31 December 2022 — CC BY 4.0 (names with 20 or more bearers shown).
Nearby in the index
Surnames next to Massi.
- Massei 185 · U.S. census
- Massel 132 · U.S. census
- Massena 395 · U.S. census
- Masset 184 · U.S. census
- Massetti 363 · U.S. census
- Massey 55,595 · U.S. census
- Massicot 169 · U.S. census
- Massie 10,920 · U.S. census
- Massier 110 · U.S. census
- Massimi 224 · U.S. census
- Massimino 594 · U.S. census
- Massin 126 · U.S. census
When the index is not enough
This page says where Massi 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.