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Home › Baby Names Directory › Casimer

Casimer

♂ Boy

Pronounced KAZ-uh-meer /ˈkæz.ə.mɪər/Medium

Meaning: An Americanized spelling of Casimir, from the Polish Kazimierz, built on Slavic elements read as 'to destroy' and 'peace; fame' — often given as 'one who proclaims peace.' Borne by several Polish kings and Saint Casimir.Low

In 30 seconds: A regal old name: Casimer is a spelling of Casimir ('proclaimer of peace,' Polish), said 'KAZ-uh-meer.' Vintage and rare.
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Origin MediumPolish, Slavic
MeaningAn Americanized spelling of Casimir, from the Polish Kazimierz, built on Slavic elements read as 'to destroy' and 'peace; fame' — often given as 'one who proclaims peace.' Borne by several Polish kings and Saint Casimir.
U.S. rank (2017)#12604 ↗ Rising
2017 U.S. births5 boys (0.00% of U.S. boys)
Peak year1918
Total births (all-time)≈ 1,895

Popularity in the U.S. · SSA data

peak 191818952017

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Casimer respells Casimir, from the Polish Kazimierz, whose Slavic parts are read as 'destroyer/proclaimer of peace.' Borne by Polish kings and a patron saint, it saw immigrant-era American use, peaked in 1918, and faded after (said 'KAZ-uh-meer').

Casimer belonged to the early-century Polish-American generation and has grown rare since. Vintage, Slavic, and regal.

Did you know? Casimer is an Americanized Casimir ('proclaimer of peace') that peaked around 1918 — a name carried by Polish-American families of the era.
Overall data confidence 52%
References — Casimer — Variant of Casimir; Polish 'proclaimer of peace'

Variations

CasimirKazimierzCasimere

Nicknames

CasCash

Famous Bearers

  • Famous bearers coming soon.

If you like Casimer…

Casimir— the standard spelling
Stanley— a like Polish-American classic
Leon— a like immigrant-era pick
Casper— a like vintage Cas- name

Explore names like Casimer

By themevintageregalpolish1910s

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Frequently Asked

What does the name Casimer mean?

Casimer is a variant of Casimir, from the Polish for 'destroyer/proclaimer of peace.'

How do you pronounce Casimer?

It's said KAZ-uh-meer /ˈkæz.ə.mɪər/ — three syllables, stress on the first.

Is Casimer a boy or girl name?

Casimer is used here as a boy's name.

How popular is Casimer?

Casimer peaked in the late nineteen-tens and is rare today.

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