The first name Casimir
A boy’s name from Polish meaning “proclamation of peace”.
Pronounced /ˈkæzɪmɪɚ/ 3 syllables Male Also a surname
Meaning and origin
Polish origin
Casimir means “proclamation of peace” in Polish.
From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".
More names that mean peace.
From Wiktionary (CC BY-SA 4.0).
Popularity
Babies registered in England and Wales, 1996–2025
Casimir last appeared in the official list in 2024, given to 5 boys. It peaked in 2009, with 6 births (#2,837).
Office for National Statistics; years with fewer than three births are not published and show as zero. Compare Casimir with other names.
Popularity in the United States
Babies named Casimir at birth, 1880–2025
In 2025, 73 boys born in the United States were named Casimir, the 2,039th most popular boys’ name that year. It was used most in 1919, when 220 were.
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Casimir in other languages
Equivalent forms of the name, from Wiktionary
Spelled Casimir in French and German too.
Famous people named Casimir
22 on Wikidata, most written-about first
- Casimir DelavigneFrench poet and dramatist (1793-1843)
- Casimir PerierFrench statesman (1777-1832)
- Casimir Oyé-MbaGabonese politician (1942–2021)
- Casimir NingaChadian footballer, born 1993
- Johan Casimir EhrnroothFinnish officer, politician and Prime Minister of Bulgaria (1833–1913)
- Casimir LefaucheuxFrench gunsmith (1802–1852)
- Casimir II, Duke of CieszynDuke of Cieszyn, 1448–1528
- Casimir I, Duke of PomeraniaDuke of Pomerania, 1124–1180
- Claude Casimir GilletFrench botanist (1806-1896)
- Johann Casimir HäffelinGerman cardinal, 1737–1827
- Casimir Arvet-TouvetFrench botanist (1841-1913)
- Casimir DavaineFrench physician and microbiologist (1812–1882)
Questions
- What does the name Casimir mean?
- Casimir means “proclamation of peace” in Polish.
- What is the origin of the name Casimir?
- From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".
- How popular is the name Casimir?
- In 2024, 5 boys born in England and Wales were named Casimir, ranking 3,688th. Its peak was 2009, with 6 births.
- Is Casimir a boy's or a girl's name?
- Mostly a boy's name: 100% of the 5,248 US babies named Casimir since 1880 were boys.
- When was Casimir most popular?
- 1919 in the United States, when 220 babies were named Casimir, its highest rank at 395th.
- How do you pronounce Casimir?
- Casimir is /ˈkæzɪmɪɚ/, 3 syllables.
- Is Casimir also a surname?
- Yes. Casimir is used as a surname as well as a first name; its surname page has the origin and how many people carry it.