The Magni surname
In the 2010 U.S. Census, 357 people carried this name — #57,101 among all U.S. surnames, about 1 in every 833,300 people counted. About the same as in 2000 (357).
In Argentina’s national register
At least 604 people named Magni 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 190 people named Magni.
60 of them were born outside France. Those born in France came from 28 départements, most often Corsica.
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
169 people named Magni live in Switzerland.
They live in 13 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 the Nordic population registers
53 people named Magni 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).
Who carried it
People named Magni,
with a public archive behind them.
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Petrus Rivius d. 1655 · priest
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Giovanni Battista Magni d. 1562 · merchant
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Niclaus Magni d. 1543
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Nicholas Magni 1355–1435 · theologian
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Olaus Magni 1405–1460 · Catholic priest
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Birgerus Magni 1419–1464 · diplomat
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Magni.
- Magnan 1,153 · U.S. census
- Magnani 1,053 · U.S. census
- Magnant 387 · U.S. census
- Magne 142 · U.S. census
- Magner 2,911 · U.S. census
- Magnes 198 · U.S. census
- Magnin 333 · U.S. census
- Magno 2,642 · U.S. census
- Magnon 265 · U.S. census
- Magnus 2,291 · U.S. census
- Magny 158 · U.S. census
- Magon 170 · U.S. census
When the index is not enough
This page says where Magni 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.