The Olsen surname
In the 2010 U.S. Census, 59,356 people carried this name — #566 among all U.S. surnames, about 1 in every 4,970 people counted. That is up 3% from 57,357 in 2000.
In Argentina’s national register
At least 549 people named Olsen 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 Switzerland’s population statistics
149 people named Olsen live in Switzerland.
They live in 14 of Switzerland’s 26 cantons, most of all in Zurich.
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 · names with fewer than 3 bearers in a canton are not published.
In France’s civil register
France’s register of deaths holds 85 people named Olsen.
Most of them — 43 — were born outside France. Those born in France came from 14 départements, most often Paris.
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 Poland’s population register
33 people named Olsen have a registered home in Poland.
Of the 157 in Poland’s national register, these are the ones with a permanent address on file. They live in 8 of Poland’s 16 voivodeships, most of all in Masovian.
Too few records to say where it concentrates region by region — these are plain counts, not shares.
Where they live today
PESEL register, Ministry of Digital Affairs of Poland (dane.gov.pl) — CC0 · living people by voivodeship of permanent residence, 20 January 2026.
In Belgium’s population register
At least 23 people named Olsen 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 East Flanders.
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 print
Olsen in American newspapers,
1905–1919.
Chronicling America, Library of Congress — digitised newspapers in the public domain.
Who carried it
People named Olsen,
with a public archive behind them.
-
Peder Blicher Olsen 1759–1832 · poet -
Gottsche Hans Olsen 1760–1829 · poet -
Ole Ferdinand Olsen 1805–1887 -
Christian Olsen 1813–1898 · photographer -
Edvard Olsen 1838–1915 · politician
Wikidata and Wikimedia Commons (CC0) · 220 lives in all are documented under this name.
Nearby in the index
Surnames next to Olsen.
- Ollivier 234 · U.S. census
- Ollmann 205 · U.S. census
- Olmedo 5,768 · U.S. census
- Olmo 1,879 · U.S. census
- Olmos 9,895 · U.S. census
- Ols 221 · U.S. census
- Olszak 242 · U.S. census
- Olszewski 5,554 · U.S. census
- Oltz 237 · U.S. census
- Omar 7,660 · U.S. census
- Omari 595 · U.S. census
- Omer 2,063 · U.S. census
When the index is not enough
This page says where Olsen 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.