# Casimir (first name)

Source: https://namelineage.com/first-name/casimir/  
Publisher: Name Lineage. US counts from the Social Security Administration; England and Wales counts from the Office for National Statistics; meaning and etymology from Wiktionary. Data updated 2026-11-11.

| Field | Value |
|---|---|
| Usually given to | boys |
| Origin | Polish |
| Meaning | “proclamation of peace” |
| Pronunciation | /ˈkæzɪmɪɚ/, 3 syllables |
| Nicknames | none recorded |
| Variant spellings | none recorded |
| US babies named this | 5,248 since 1880 |
| Boys / girls in the US | 5,248 / 0 (0% girls) |
| Babies in England and Wales | 39, 1996 to 2025 |

## Etymology

From a Polish royal name and saint's name Kazimierz, of Slavic origin, meaning "proclamation of peace".

## What it means

Casimir is grouped under peace.

## Popularity

The last 15 years of each series. A year is missing when too few babies were given the name for the agency to publish it: five in the US, three in England and Wales.

### United States, boys

| Year | Babies | Rank |
|---|---|---|
| 2011 | 22 | 4,389 |
| 2012 | 23 | 4,274 |
| 2013 | 37 | 3,010 |
| 2014 | 31 | 3,467 |
| 2015 | 34 | 3,307 |
| 2016 | 29 | 3,700 |
| 2017 | 24 | 4,244 |
| 2018 | 31 | 3,546 |
| 2019 | 29 | 3,733 |
| 2020 | 29 | 3,662 |
| 2021 | 40 | 3,029 |
| 2022 | 58 | 2,414 |
| 2023 | 58 | 2,363 |
| 2024 | 59 | 2,377 |
| 2025 | 73 | 2,039 |

### England and Wales, boys

| Year | Babies | Rank |
|---|---|---|
| 1997 | 3 | 2,859 |
| 2008 | 4 | 3,687 |
| 2009 | 6 | 2,837 |
| 2010 | 3 | 4,678 |
| 2015 | 3 | 4,747 |
| 2018 | 5 | 3,412 |
| 2020 | 4 | 3,848 |
| 2021 | 3 | 4,789 |
| 2022 | 3 | 4,789 |
| 2024 | 5 | 3,688 |

## In other languages

- Czech: Kazimír
- Esperanto: Kazimiro
- French: Casimir
- German: Casimir, Kasimir
- Hungarian: Kázmér
- Italian: Casimiro
- Japanese: カジミール
- Latin: Casimīrus
- Latvian: Kazimirs
- Lithuanian: Kazimieras
- Polish: Kazimierz
- Portuguese: Casimiro
- Romanian: Cazimir
- Russian: Казими́р, Кази́меж
- Slovak: Kazimír
- Slovene: Kazimir
- Spanish: Casimiro
- Ukrainian: Казими́р

## People named Casimir

- Casimir Delavigne, French poet and dramatist (1793-1843)
- Casimir Perier, French statesman (1777-1832)
- Casimir Oyé-Mba, Gabonese politician (1942–2021)
- Casimir Ninga, Chadian footballer
- Johan Casimir Ehrnrooth, Finnish officer, politician and Prime Minister of Bulgaria (1833–1913)
- Casimir Lefaucheux, French gunsmith (1802–1852)
- Casimir II, Duke of Cieszyn, Duke of Cieszyn
- Casimir I, Duke of Pomerania, Duke of Pomerania
- Claude Casimir Gillet, French botanist (1806-1896)
- Johann Casimir Häffelin, German cardinal
- Casimir Arvet-Touvet, French botanist (1841-1913)
- Casimir Davaine, French physician and microbiologist (1812–1882)

## How to read these numbers

A count is babies registered with that name in that year, not people alive now, so a name common a century ago can have a large total and few recent births.