Casimir
- Meaning
- Destroyer of peace; from Kazimierz
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What does Casimir mean?
Casimir means “Destroyer of peace; from Kazimierz”.
Casimir is a form of the Polish name Kazimierz, with roots in older Slavic words meaning “destroy” and “peace” or “world.” The traditional interpretation “destroyer of peace” can sound surprising today, but its medieval royal history is an important part of how the name has been understood. Casimir III, known as the Great, was a fourteenth-century king of Poland.
The name also belongs to Saint Casimir, a Polish prince associated with both Poland and Lithuania. Those historical and religious connections helped it travel into other European languages. Kazimierz preserves the Polish form, while Kasimir and Casimiro show related adaptations. Casimir offers a way to carry that heritage in a spelling familiar in English and French, without reducing its long history to the literal meaning alone.
Nicknames & variations
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Variations & related forms
Related forms and spellings recorded for this name.
How popular is Casimir?
United States · 2025Explore how often Casimir is used and how its ranking has changed.
- US boys rank
- #2,039 2025 · #1 is most popular
- Boys named Casimir
- 73 Recorded births in 2025
- Change in births
- 23.7% More than 2024
Casimir over time
United States · Boys
Recorded births
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Yearly data & usage
Rankings are calculated separately for girls and boys. The summary highlights boys, the most common recorded usage in 2025.
| Year | Usage | US rank | Births |
|---|---|---|---|
| 2025 | Boys | #2,039 | 73 |
| 2024 | Boys | #2,377 | 59 |
| 2023 | Boys | #2,363 | 58 |
| 2022 | Boys | #2,414 | 58 |
| 2021 | Boys | #3,029 | 40 |
| 2020 | Boys | #3,662 | 29 |
| 2019 | Boys | #3,733 | 29 |
| 2018 | Boys | #3,546 | 31 |
| 2017 | Boys | #4,244 | 24 |
| 2016 | Boys | #3,700 | 29 |
| 2015 | Boys | #3,307 | 34 |
| 2014 | Boys | #3,467 | 31 |
Years reflect available birth records. Missing records do not mean zero births.
Names like Casimir
Explore the connection, then save your favorites to compare.
James
Mostly boys- Meaning
- Supplanter
Shares an origin with Casimir.
Jack
Mostly boys- Meaning
- God is gracious
Shares an origin with Casimir.
Hudson
Mostly boys- Meaning
- Hugh's son
Shares an origin with Casimir.
Julian
Mostly boys- Meaning
- Uncertain; proposed meanings include youthful or downy-bearded
Shares an origin with Casimir.
Cooper
Mostly boys- Meaning
- Barrel maker
Shares an origin with Casimir.
Jackson
Mostly boys- Meaning
- Son of Jack
Shares an origin with Casimir.
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