The Mahy surname
In the 2010 U.S. Census, 184 people carried this name — #98,553 among all U.S. surnames, about 1 in every 1,666,700 people counted. That is up 6% from 174 in 2000.
In Belgium’s population register
At least 910 people named Mahy 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.
Where it concentrates, on the mapWhere they live today
Statbel (Statistics Belgium), family names of the population by municipality, 1 January 2026 — CC BY 4.0.
In France’s civil register
France’s register of deaths holds 333 people named Mahy.
34 of them were born outside France. Those born in France came from 34 départements, most often Ardennes.
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 Argentina’s national register
At least 29 people named Mahy 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 Córdoba.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
RENAPER (National Registry of Persons, Argentina), surnames of residents by province, December 2021 — CC BY 4.0.
Who carried it
People named Mahy,
with a public archive behind them.
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Karoline de Mahy de Favras 1787–1865 · aristocrat
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May Mahy 1910–1993 · teacher
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Margaret Mahy 1936–2012 · screenwriter
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Brian W. J. Mahy 1937– · virologist
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Barry Mahy 1942–2020 · association football player
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Christine Mahy 1960– · activist
Wikidata (CC0).
Nearby in the index
Surnames next to Mahy.
- Mahin 442 · U.S. census
- Mahler 5,222 · U.S. census
- Mahmoud 3,342 · U.S. census
- Mahmoudi 397 · U.S. census
- Mahon 9,441 · U.S. census
- Mahr 1,831 · U.S. census
- Mai 17,445 · U.S. census
- Maia 1,018 · U.S. census
- Maida 2,084 · U.S. census
- Maier 14,135 · U.S. census
- Maignan 421 · U.S. census
- Mailhot 1,105 · U.S. census
When the index is not enough
This page says where Mahy 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.