Casimir
About Casimir
Casimir, a traditional name of Polish kings, could do quite well these days as we see the rise of Caspian, Cassius, Castiel, et. al. Like Leopold and Laszlo, Casimir is strong and worth considering if you've got an adventurous streak — and bet your son will too.
An alternative commonly cited meaning that modern parents might prefer is "proclaimer of peace". The traditional Polish version of the name is Kazimierz.
Pronounced KAZ-uh-meer.
As of October 2026, Casimir ranked #2039 in US births in 2025 SSA, peaked at #393 in 1917, Nameberry popularity #436.
Popularity & trends
Data table
| Year | US rank | Births | Per million |
|---|---|---|---|
| 2014 | #3,466 | 31 | 16.1 |
| 2015 | #3,307 | 34 | 17.7 |
| 2016 | #3,700 | 29 | 15.3 |
| 2017 | #4,243 | 24 | 13 |
| 2018 | #3,543 | 31 | 17.1 |
| 2019 | #3,731 | 29 | 16.2 |
| 2020 | #3,660 | 29 | 16.8 |
| 2021 | #3,028 | 40 | 22.9 |
| 2022 | #2,412 | 58 | 33.2 |
| 2023 | #2,363 | 58 | 33.9 |
| 2024 | #2,393 | 58 | 33.7 |
| 2025 | #2,039 | 73 | 42.7 |
World rankings
Similar names
These 20 names were selected by our users looking for other names like Casimir.
- Lysander
- Oberon
- Auberon
- Aurelius
- Amias
- Lorcan
- Caius
- Leander
- Alaric
- Cato
- Amadeus
- Solaire
- Marius
- Orpheus
- Emrys
- Ozias
- Isidore
- Fenrir
- Lucien
- Casimer
Casimir on lists
Famous Casimirs
- Saint Casimir
crown prince of Poland
- Casimir Pulaski
Polish soldier and politician, "the father of American cavalry"
- Casimir III the Great
last king of Poland
- Casimir IV Jagiellon
grand duke of Lithuania and king of Poland
- Casimir I the Restorer
duke of Poland
- Casimir II the Just
high duke of Poland
- Casimir I of Kuyavia
prince of Kujawy, Mazovia and Wielkopolska
- Casimir Pierre Périer
French President of the Council during the July Monarchy
- Casimir I of Opole
duke of Opole,Racibórz
- Casimir Eugene "Cass" Michaels
American baseball player
Casimir in pop culture
- "Casimir Pulaski Day
" song by Sufjan Stevens
- Casimir Lypiatt
character in "Antic Hay" (1923) by Aldous Huxley
- [Casimir] Pulaski Day
celebrated on October 11th