Casimir
From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".
Every Casimir since 1894 — 5,248 of them. Popularity, births, and rankings for each year, from official Social Security records.
The story of Casimir
Casimir is rare for boys in the United States, ranked #2,039 in 2025 with 73 babies given the name. It is currently rising compared with a decade ago.
Since 1894, 5,248 American babies have been named Casimir. Its peak came in 1919, when 220 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 Casimir stood among all boys' names in any year, or use the compare tool to plot it against other names.
Casimir year by year
Every year since 2001, and five-year steps back to 1880. Rank is within each sex.
| Year | Boys | Boys rank |
|---|---|---|
| 2025 | 73 | #2,039 |
| 2024 | 59 | #2,377 |
| 2023 | 58 | #2,363 |
| 2022 | 58 | #2,414 |
| 2021 | 40 | #3,029 |
| 2020 | 29 | #3,662 |
| 2019 | 29 | #3,733 |
| 2018 | 31 | #3,546 |
| 2017 | 24 | #4,244 |
| 2016 | 29 | #3,700 |
| 2015 | 34 | #3,307 |
| 2014 | 31 | #3,467 |
| 2013 | 37 | #3,010 |
| 2012 | 23 | #4,274 |
| 2011 | 22 | #4,389 |
| 2010 | 24 | #4,128 |
| 2009 | 22 | #4,455 |
| 2008 | 28 | #3,754 |
| 2007 | 25 | #4,027 |
| 2006 | 15 | #5,559 |
| 2005 | 23 | #3,961 |
| 2004 | 23 | #3,884 |
| 2003 | 14 | #5,311 |
| 2002 | 23 | #3,685 |
| 2001 | 11 | #6,080 |
| 2000 | 16 | #4,612 |
| 1995 | 10 | #5,554 |
| 1990 | 20 | #3,073 |
| 1985 | 15 | #3,093 |
| 1980 | 16 | #2,848 |
| 1975 | 5 | #5,582 |
| 1970 | 11 | #2,916 |
| 1965 | 15 | #2,099 |
| 1960 | 16 | #2,051 |
| 1955 | 24 | #1,574 |
| 1950 | 35 | #1,222 |
| 1945 | 38 | #1,041 |
| 1940 | 36 | #1,093 |
| 1935 | 46 | #931 |
| 1930 | 93 | #635 |
| 1925 | 123 | #558 |
| 1920 | 206 | #413 |
| 1915 | 178 | #403 |
| 1910 | 17 | #732 |
| 1905 | 12 | #706 |
| 1900 | 7 | #1,063 |
| 1895 | 6 | #997 |
| 1890 | — | — |
| 1885 | — | — |
| 1880 | — | — |
Famous people named Casimir
- Casimir III the Great Politician · 1310–1370
- Casimir IV Jagiellon Politician · 1427–1492
- Casimir Funk Chemist · 1884–1967
- Casimir I the Restorer Politician · 1016–1058
- Casimir Pulaski Military personnel · 1745–1779
Ranked by global fame across Wikipedia editions (Pantheon project, MIT).
Frequently asked questions
What does the name Casimir mean?
From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".
How popular is the name Casimir in 2025?
Casimir ranked #2,039 among boys' names in the United States in 2025, with 73 babies given the name, according to Social Security Administration data.
How many people are named Casimir?
5,248 babies have been named Casimir in the United States since 1894, based on Social Security card applications.
When was the name Casimir most popular?
Casimir peaked in 1919, when 220 newborns received the name.
Is Casimir a boy or girl name?
Casimir is overwhelmingly a boy's name — 100% of babies with the name.
Is the name Casimir rising or falling?
Casimir is on the rise — noticeably more popular now than a decade ago.
Who are famous people named Casimir?
Well-known people named Casimir include Casimir III the Great (politician), Casimir IV Jagiellon (politician), Casimir Funk (chemist).