The Mollo surname
In the 2010 U.S. Census, 775 people carried this name — #30,222 among all U.S. surnames, about 1 in every 384,600 people counted. That is down 2% from 788 in 2000.
In Argentina’s national register
At least 4,122 people named Mollo 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 308 people named Mollo.
54 of them were born outside France. Those born in France came from 27 départements, most often Morbihan.
Where it concentrates, on the mapWhere 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
66 people named Mollo live in Switzerland.
They live in 7 of Switzerland’s 26 cantons, most of all in Zurich.
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 Belgium’s population register
At least 40 people named Mollo 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 Limburg.
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.
Nearby in the index
Surnames next to Mollo.
- Moller 4,209 · U.S. census
- Molles 163 · U.S. census
- Mollet 820 · U.S. census
- Mollica 1,900 · U.S. census
- Mollicone 250 · U.S. census
- Mollin 151 · U.S. census
- Mollon 136 · U.S. census
- Molly 183 · U.S. census
- Molnar 8,586 · U.S. census
- Molon 125 · U.S. census
- Molteni 148 · U.S. census
- Molter 1,800 · U.S. census
When the index is not enough
This page says where Mollo 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.