Isidor
Every Isidor since 1883 — 419 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Isidor
Isidor is rare for boys in the United States, ranked #10,083 in 2025 with 7 babies given the name. It is currently rising compared with a decade ago.
Since 1883, 419 American babies have been named Isidor. Its peak came in 1914, when 24 newborns received the name — the signature sound of the 1910s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Isidor stood among all boys' names in any year, or use the compare tool to plot it against other names.
Isidor year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | 7 | #10,083 |
| 2024 | 8 | #9,347 |
| 2023 | 15 | #6,044 |
| 2022 | — | — |
| 2021 | — | — |
| 2020 | — | — |
| 2019 | — | — |
| 2018 | 5 | #12,927 |
| 2017 | — | — |
| 2016 | — | — |
| 2015 | — | — |
| 2014 | — | — |
| 2013 | — | — |
| 2012 | — | — |
| 2011 | — | — |
| 2010 | — | — |
| 2009 | — | — |
| 2008 | — | — |
| 2007 | — | — |
| 2006 | — | — |
| 2005 | — | — |
| 2004 | — | — |
| 2003 | — | — |
| 2002 | — | — |
| 2001 | — | — |
| 2000 | — | — |
| 1995 | — | — |
| 1990 | — | — |
| 1985 | — | — |
| 1980 | — | — |
| 1975 | — | — |
| 1970 | — | — |
| 1965 | — | — |
| 1960 | — | — |
| 1955 | 7 | #3,325 |
| 1950 | 5 | #3,923 |
| 1945 | — | — |
| 1940 | — | — |
| 1935 | — | — |
| 1930 | 5 | #4,261 |
| 1925 | 11 | #2,664 |
| 1920 | 16 | #2,088 |
| 1915 | 24 | #1,388 |
| 1910 | — | — |
| 1905 | — | — |
| 1900 | 5 | #1,407 |
| 1895 | — | — |
| 1890 | — | — |
| 1885 | 7 | #802 |
| 1880 | — | — |
Famous people named Isidor
- Isidor Isaac Rabi Physicist · 1898–1988
- Isidor Straus Politician · 1845–1912
- Isidor Gunsberg Chess player · 1854–1930
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
How popular is the name Isidor in 2025?
Isidor ranked #10,083 among boys' names in the United States in 2025, with 7 babies given the name, according to Social Security Administration data.
How many people are named Isidor?
419 babies have been named Isidor in the United States since 1883, based on Social Security card applications.
When was the name Isidor most popular?
Isidor peaked in 1914, when 24 newborns received the name.
Is Isidor a boy or girl name?
Isidor is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Isidor rising or falling?
Isidor is on the rise — noticeably more popular now than a decade ago.
Who are famous people named Isidor?
Well-known people named Isidor include Isidor Isaac Rabi (physicist), Isidor Straus (politician), Isidor Gunsberg (chess player).