Casimir

Casimir - A very unique male name



  Nov 08,2026      Abigail Adams, Editorial writer   

Casimir at a glance

Casimir is ranked #2526 among boy baby names in 2025, with 18 births in 2025. It peaked in 1919 at #367 and first appeared on the charts in 1910.

Rank in 2025
#2526
Births in 2025
18
Peak year
1919 (#367)
First appeared
1910
Trend
#3727 in 2020 → #2526 in 2025 (Rising)
Popularity
1 in 81,460 boys
Visitor rating
5.0/5 (1 recent votes)

Source: U.S. Social Security Administration · Data through 2025 · Updated 2026

Casimir appeared on the charts for the first time in 1910 on position #650. In this article you'll learn the history of this name, statistics, see famous people named Casimir and more.
Are you having a baby or looking to learn more about the name Casimir? Our experts and editorial staff have gathered trends and insights for 30,000+ baby names over the last 100 years -- And on this page you will learn everything you ever wanted to know about the name Casimir. The baby boy name Casimir was given to 18 baby boys in 2025, ranking #2526 on the national boy baby name top chart.

Must Try: Find A Perfect Name Based On Your Last Name...

With that position 1 in 81,460 baby boys were given this name - making this a very unique male name according to our Popularity Score algorithm. Casimir peaked in popularity 107 years ago in 1919 on position 367.



Famous with this name

Casimir
Alex Casimir
Guerdy Casimir


How would you rate Casimir, 1-5?

Rating: 5.0/5 (1 recent votes)


Casimir is currently topping the charts in...

Did you know that popularity can vary a lot between states? Casimir is currently topping the baby name charts in Colorado at position #870 - and is the least popular in New York at position #1,322.

Why care about state specific baby name charts? It could be that a name that is very popular on the national overall charts is less (or even more) popular where you live. So make sure you check out the state specific charts below and find out how popular or unique Casimir is where you live.


Comment and discuss




Casimir origin and meaning

Polish form of Slavic Kazimierz

Uncertain — the Slavic elements are read both as 'destroyer of peace' and 'proclaimer of peace', and scholarship does not settle it

Casimir is the English and French form of Polish Kazimierz, the name of Polish kings and of Saint Casimir, patron of Poland and Lithuania. The name's two elements, kazi and mir, support opposite readings that are both seriously argued, so the meaning is honestly uncertain. In America it peaked in 1919 with Polish immigration and is now rising again from a low base.

Origin uncertain

Casimir is a 7 letter name with 3 syllables.

To see famous people named Casimir, pop culture references for the name Casimir and nicknames & variations - visit Nameberry or Wikipedia.

Similar to Casimir

We've found the following names that sound similar to Casimir, sorted by popularity.

Connor / Conner / Conor / Casimer / Camari / Casimiro / Comer / Cashmere / Casmer / Casmere /

Name statistics


Most parents-to-be know if they want a popular or unique name, and with these charts and data tables you can easily get a better understanding of how popular or unique this name is.

With a quick glance you can easily tell if this name is increasing or declining in popularity - But note that its current popularity can actually differ a lot from state to state.

Chart position per year (visualized)



Chart position per state (visualized)



Chart position per year (table view)


Year Rank
20252526
20243915
20232921
20222643
20213803
20203727
20133835
20123807
20113880
20103885
20053710
20043779
19812237
19801872
19611327
19581612
19561478
19551280
19541124
19531234
19521203
19511036
19501035
19491075
1948978
19461088
19451025
1944999
1943925
1942816
19411058
1940810
1939867
1938812
1937805
1936907
1935885
1934732
1933603
1932728
1931613
1930568
1929569
1928539
1927565
1926529
1925514
1924445
1923454
1922439
1921416
1920392
1919367
1918406
1917369
1916387
1915378
1914418
1913382
1912404
1911410
1910650

Chart position per state (table view)


State Rank
Colorado870
Pennsylvania1268
New York1322

Even more about Casimir


These are some of the common questions you may want to have answered to know if this is the perfect name for your baby.

Is Casimir a common or unique name?

By analyzing the number of births and frequency of this name we've determined that it's currently a very unique male name.

What is the number of syllables for the name Casimir?

3 syllables. Why is this important? One of the things that makes a baby name sound good and have a nice rythm is the number of syllables - and especially the number of syllables along with the syllable count for your last name. A simple rule is to avoid having the same number of syllables in your first, middle and last name.

Pronunciation

KAZ-ih-meer · /ˈkæzɪmɪr/

Around the world

  • Kazimierz (Polish) — The original Polish form
  • Casimir (French) — Used as-is

Spellings and nicknames

  • Casimiro — The Spanish and Italian form

Famous bearers

  • Saint Casimir — Polish prince and patron saint of Poland and Lithuania (1458–1484) Historical
  • Casimir III the Great — King of Poland who reformed its law and founded its first university (1310–1370) Historical

Style

RoyalInternationalClassic

Why parents choose it

Casimir offers royal and saintly history in a form that feels grand and unusual.

Worth knowing

  • Most Americans will need the spelling and pronunciation explained

Recommended articles


New data stories


#
On chart
1919
Peak year
Male


Popularity Score™

Name Casimir
Gender Male
Popularity 1 in 81,460
Letter count 7
Syllable count 3
Year first discovered 1910
2025 births +18

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