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Home › Baby Names Directory › Kasimir

Kasimir

♂ Boy

Pronounced KAZ-ih-meer /ˈkæz.ɪ.mir/Medium

Meaning: A form/spelling of Casimir/Kazimierz — from the Slavic, variously 'one who destroys (the enemy's) peace' and 'one who proclaims/establishes peace'; routes layeredLow

In 30 seconds: One who proclaims peace: Kasimir is Slavic. Lyrical, classic, and warm (said 'KAZ-ih-meer').
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Origin LowSlavic, Polish
MeaningA form/spelling of Casimir/Kazimierz — from the Slavic, variously 'one who destroys (the enemy's) peace' and 'one who proclaims/establishes peace'; routes layered
U.S. rank (2025)#11344 ↘ Falling
2025 U.S. births6 boys (0.00% of U.S. boys)
Peak year2021
Total births (all-time)≈ 80

Popularity in the U.S. · SSA data

peak 202419172025

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

Kasimir is a form/spelling of Casimir/Kazimierz — from the Slavic, variously 'one who destroys (the enemy's) peace' and 'one who proclaims/establishes peace' (routes layered, which we note). A lyrical, classic name (said 'KAZ-ih-meer').

In the U.S. it appears in Polish and Slavic families. Rare, one-who-proclaims-peace at the root, and classic.

Did you know? Casimir/Kazimierz is Slavic, variously 'one who destroys (the enemy's) peace' and 'one who proclaims peace' — Kasimir is a spelling, lyrical and classic (the routes are layered, which we note; said 'KAZ-ih-meer').
Overall data confidence 36%
References — Casimir — routes layered

Variations

CasimirKazimierzKazimir

Nicknames

Kaz

Famous Bearers

  • Famous bearers coming soon.

If you like Kasimir…

Casimir— the standard spelling
Vladimir— a fellow -mir Slavic boys' name
Bladimir— a fellow Slavic choice
Kaimir— another Slavic name
Kazmir— another Polish name

Explore names like Kasimir

By themeuncertainslavicpolish
By meaningPeace

All themes →All meanings →All origins →

Frequently Asked

What does the name Kasimir mean?

Kasimir is a form of Casimir/Kazimierz — Slavic, variously 'one who destroys (the enemy's) peace' and 'one who proclaims peace'; the routes are layered.

How do you pronounce Kasimir?

It's said KAZ-ih-meer /ˈkæz.ɪ.mir/ — three syllables, stress on the first.

Is Kasimir a boy or girl name?

Kasimir is a boy's name.

How popular is Kasimir?

Kasimir is a very rare name in the U.S.

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