The Rosenblum surname
In the 2010 U.S. Census, 4,086 people carried this name — #8,114 among all U.S. surnames, about 1 in every 71,900 people counted. That is down 1% from 4,139 in 2000.
Where the name comes from
The origin of the Rosenblum surname
A surname from German.
From Wiktionary, the free dictionary (en.wiktionary.org) — entry «Rosenblum» (French), by Wiktionary contributors · licensed CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0) · excerpt, lightly adapted.
In Argentina’s national register
At least 62 people named Rosenblum 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 City of Buenos Aires.
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 France’s civil register
France’s register of deaths holds 58 people named Rosenblum.
18 of them were born outside France. Those born in France came from 4 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 Belgium’s population register
At least 27 people named Rosenblum 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 Antwerp.
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.
Who carried it
People named Rosenblum,
with a public archive behind them.
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Sidney Reilly 1873–1925 · arms trader -
Sidney Reilly 1873–1925 · arms trader
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Debora Rosenblum 1864–1942
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Chaje Ides Aussenberg 1871–1940
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Sofie Levysohn 1872–1944
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Jenny Rosenblum 1874–1940
Wikidata and Wikimedia Commons (CC0) · 10 lives in all are documented under this name.
Nearby in the index
Surnames next to Rosenblum.
- Rosemond 2,024 · U.S. census
- Rosen 22,596 · U.S. census
- Rosenbaum 9,333 · U.S. census
- Rosenberg 26,307 · U.S. census
- Rosenberger 7,228 · U.S. census
- Rosenblatt 3,490 · U.S. census
- Rosenfeld 6,484 · U.S. census
- Rosenfelder 182 · U.S. census
- Rosenkranz 1,125 · U.S. census
- Rosenthal 16,583 · U.S. census
- Rosenzweig 2,510 · U.S. census
- Roser 2,114 · U.S. census
When the index is not enough
This page says where Rosenblum 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.