The Hatt surname
In the 2010 U.S. Census, 2,574 people carried this name — #12,108 among all U.S. surnames, about 1 in every 114,900 people counted. That is up 4% from 2,480 in 2000.
In Switzerland’s population statistics
321 people named Hatt live in Switzerland.
They live in 13 of Switzerland’s 26 cantons, most of all in Zurich.
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 164 people named Hatt.
4 of them were born outside France. Those born in France came from 21 départements, most often Bas-Rhin.
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 32 people named Hatt 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 Chubut.
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.
In the Nordic population registers
96 people named Hatt are counted in Sweden and Finland.
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.
In print
Hatt in American newspapers,
1903–1913.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 169,253 pages in all carry the name.
Nearby in the index
Surnames next to Hatt.
- Hassler 4,499 · U.S. census
- Hassold 101 · U.S. census
- Hasson 3,233 · U.S. census
- Hassoun 382 · U.S. census
- Hatem 907 · U.S. census
- Haton 163 · U.S. census
- Hattermann 114 · U.S. census
- Hattier 159 · U.S. census
- Hatton 12,090 · U.S. census
- Hau 3,592 · U.S. census
- Hauber 1,014 · U.S. census
- Haubert 1,120 · U.S. census
When the index is not enough
This page says where Hatt 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.