The Manni surname
In the 2010 U.S. Census, 764 people carried this name — #30,538 among all U.S. surnames, about 1 in every 384,600 people counted. That is up 7% from 716 in 2000.
In Argentina’s national register
At least 196 people named Manni 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 Santa Fe.
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
165 people named Manni live in Switzerland.
They live in 12 of Switzerland’s 26 cantons, most of all in Ticino.
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 114 people named Manni.
40 of them were born outside France. Those born in France came from 18 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 Belgium’s population register
At least 32 people named Manni 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 Hainaut.
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.
In the Nordic population registers
371 people named Manni are counted in Finland and Sweden.
Sweden’s figure is from 31 December 2022, the last count Statistics Sweden published. Finland counts its citizens, at home or abroad.
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) · Digital and Population Data Services Agency (DVV), Finland, surname statistics, August 2026 — CC BY 4.0.
Who carried it
People named Manni,
with a public archive behind them.
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Domenico Maria Manni 1690–1788 · writer -
Giovanni Battista Manni d. 1728 · architect
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Federigo Manni d. 1689 · engineer
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Baldassarre Manni d. 1448 · Catholic priest
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Agostino Manni 1547–1618 · writer
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Giovanni Battista Magni 1592–1674 · artist
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Manni.
- Manini 224 · U.S. census
- Maniscalco 3,021 · U.S. census
- Manka 960 · U.S. census
- Mann 83,510 · U.S. census
- Manna 3,437 · U.S. census
- Manne 637 · U.S. census
- Mannino 3,857 · U.S. census
- Manno 2,644 · U.S. census
- Mano 691 · U.S. census
- Manon 982 · U.S. census
- Manoukian 700 · U.S. census
- Manresa 314 · U.S. census
When the index is not enough
This page says where Manni 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.