The Poirot surname
In the 2010 U.S. Census, 402 people carried this name — #51,723 among all U.S. surnames, about 1 in every 714,300 people counted. That is up 11% from 361 in 2000.
What the name means
The meaning of the Poirot surname
Poirot: a surname transferred from the given name.
Middle French Poirot. From a variant of Pierrot: Pierre (“Peter”) + -ot (equivalent of the English Petey, Pete.)
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Poirot» (French), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In France’s civil register
France’s register of deaths holds 2,849 people named Poirot.
15 of them were born outside France. Those born in France came from 73 départements, most often Vosges.
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
24 people named Poirot live in Switzerland.
They live in 3 of Switzerland’s 26 cantons, most of all in Neuchâtel.
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.
Who carried it
People named Poirot,
with a public archive behind them.
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Marie-Victoire Poirot 1774–1819
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Pierre Achille Poirot 1797–1855 · painter
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Jean Poirot 1873–1924 · phonetician
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Georges Poirot 1891–1983 · archaeologist
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Maurice Poirot 1900–1981 · politician
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René Poirot 1903–1990 · politician
Wikidata (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Poirot.
- Pohl 6,485 · U.S. census
- Poineau 104 · U.S. census
- Point 592 · U.S. census
- Pointe 110 · U.S. census
- Poire 226 · U.S. census
- Poirier 9,453 · U.S. census
- Poiroux 134 · U.S. census
- Poirrier 645 · U.S. census
- Poissant 653 · U.S. census
- Poisson 1,822 · U.S. census
- Poitier 526 · U.S. census
- Pokorski 492 · U.S. census
When the index is not enough
This page says where Poirot 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.