Given name

Kazimierz

“one who demands peace”

Kazimierz is a form of Casimir. One Slavic interpretation is “one who demands peace.”

Meaning & origin

What it means

Kazimierz is a form of Casimir. One Slavic interpretation is “one who demands peace.”

Explained through its name family

Where it comes from

Kazimierz is a variant of Kasimir. An origin associated with Kasimir is Slavic.

Explained through its name family

How it developed

In Polish use, Kazimierz is used as a form of Casimir.

The story

The name has historical associations with Polish royalty.

Kazimierz through the years

Babies since 1880
82
82 boys · 0 girls
Most popular year
1915
9 babies
2025
0
Outside the ranked list
2021–25 vs 2016–20
—
Too few births to compare
051015192019401960198020002025Highest share 19150.0
Kazimierz in U.S. Social Security birth records, 1914–2025, per million boys born. Years with fewer than five births for a sex are not published and appear as zero. Use the arrow keys to step through years.

By the numbers

The most recent published U.S. birth count for boys is 6 in 2024. Later missing counts do not mean the name went unused. Its largest published annual count for boys was 9 in 1915. Published U.S. population figures for this spelling include 1,608 as a first name in 2020.

From Social Security birth records and U.S. Census name counts for this exact spelling. Other spellings are counted separately.

Kazimierz’s family of names

In Polish usage, Kazimierz has a diminutive in KAZEK. In Polish usage, Kazimierz has a feminine form in KAZIMIERA. In Polish usage, Kazimierz has a conventional equivalent in Mira.

Walk Kazimierz’s family in the name graph

KazimierzKasimirKazioKazikKazekMiraCasimirKazimirCasimiroKazimieraCazimirKazimierasCasimirusKazysKazimirsКазимирKazimírKázmér

Inner ring: nicknames and forms · outer: across languages.

Hover or tab through the constellation to see how each name is related. Bigger dots are names more people in the U.S. share.

Around the world

Kazimierz has relatives in 15 languages.

Polish

17 related names in 15 languages. Point at a dot, or tab to the map and use the arrow keys.

Each dot marks where a language is rooted, not where people with the name live today. Bigger dots hold more names. Language locations from Glottolog (CC BY 4.0); map from Natural Earth.

Nicknames & forms 4

Diminutives, pet forms, short forms and variants used alongside the name.

See also 1

Names our sources mention alongside this one. They are related in story or meaning, not forms of this name.

Similar names

If you love Kazimierz, these share its style, era, origin or sound, from outside its own family.

Polish · Royal

Zygmunt

“the victorious protector”

0Not recently recorded

>99% boys

Old Slavonic · Royal

Władysław

Władysław is a masculine given name from Czech, ultimately from Proto-Slavic. It is used in Polish.

No U.S. birth series

>99% boys

Polish · Royal

Melchior

“the king of the city”

0Not recently recorded

>99% boys

Czech · Royal

Mieczysław

“sword” · “glory”

No U.S. birth series

>99% boys

Royal

Stanisław

Stanisław is a masculine given name from Proto-Indo-European. It is used in Polish.

No U.S. birth series

>99% boys

Akkadian · Royal

Baltasar

“baal protect the king”

0Not recently recorded

>99% boys

Royal

Boryss

“a warrior; having battle glory”

No U.S. birth series

—

Royal

Quintin

“the fifth-born child” · “from the queen's town or settlement”

37RareEasing

>99% boys

Sibling ideas

Names that share Kazimierz’s feel without repeating its first letter or rhyming with it.

A brother for Kazimierz

A sister for Kazimierz