The Sebastian surname
In the 2010 U.S. Census, 13,934 people carried this name — #2,586 among all U.S. surnames, about 1 in every 21,200 people counted. That is up 28% from 10,878 in 2000.
In Argentina’s national register
At least 1,053 people named Sebastian 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 174 people named Sebastian.
61 of them were born outside France. Those born in France came from 23 départements, most often Gard.
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
168 people named Sebastian have a registered home in Poland.
Of the 293 in Poland’s national register, these are the ones with a permanent address on file. They live in 10 of Poland’s 16 voivodeships, most of all in Silesian.
Where it concentrates, on the mapWhere 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 Switzerland’s population statistics
107 people named Sebastian live in Switzerland.
They live in 13 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/en/dataset/nachnamen-der-standigen-wohnbevolkerung-nach-kanton3 · names with fewer than 3 bearers in a canton are not published.
In Belgium’s population register
At least 21 people named Sebastian 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 Liège.
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 the Nordic population registers
31 people named Sebastian 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).
In print
Sebastian in American newspapers,
1918.
Chronicling America, Library of Congress — digitised newspapers in the public domain · 163,265 pages in all carry the name.
Who carried it
People named Sebastian,
with a public archive behind them.
-
William K. Sebastian 1812–1865 · judge -
Ludwig Sebastian 1862–1943 · Catholic priest -
Charles E. Sebastian 1873–1929 · politician -
Carlos Sebastian 1884–1959 · opera singer -
Glaser Sebastian d. 1493 · artist
-
Johann Carl Sebastian 1678–1756
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Sebastian.
- Scotton 736 · U.S. census
- Scozzaro 187 · U.S. census
- Scuderi 1,383 · U.S. census
- Seach 160 · U.S. census
- Seba 401 · U.S. census
- Sebag 118 · U.S. census
- Sebastiani 504 · U.S. census
- Sebastien 171 · U.S. census
- Sebert 495 · U.S. census
- Secco 195 · U.S. census
- Secher 109 · U.S. census
- Seck 1,364 · U.S. census
When the index is not enough
This page says where Sebastian 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.