- this week

Gender: Male Meaning of Casimir: "destroyer of peace" Origin of Casimir: Polish and Slavic

The name Casimir is a boy's name of Polish origin meaning "destroyer of peace". Casimir and is often added to lists like Unique Boy Names: Unusual and Rare and discussed in our forums with posts like "Baby a Day".

From the experts:

Casimir, a traditional name of Polish kings, would have problems assimilating here. But like Leopold and Laszlo, Casimir is strong and exotic and worth considering if you've got an adventurous streak -- and bet your son will too.

Find other names based on Casimir using our baby name generator.

Famous People Named Casimir

Saint Casimir, crown prince of Poland
Casimir Pulaski, Polish soldier and politician, "the father of American cavalry"
Casimir III the Great, last king of Poland
Casimir IV Jagiellon, grand duke of Lithuania and king of Poland
Casimir I the Restorer, duke of Poland
Casimir II the Just, high duke of Poland
Casimir I of Kuyavia, prince of Kujawy, Mazovia and Wielkopolska
Casimir Pierre Périer, French President of the Council during the July Monarchy
Casimir I of Opole, duke of Opole-Racibórz
Casimir Eugene "Cass" Michaels, American baseball player

Pop Culture References for the name Casimir

"Casimir Pulaski Day," song by Sufjan Stevens
Casimir Lypiatt, character in "Antic Hay" (1923) by Aldous Huxley
[Casimir] Pulaski Day, celebrated on October 11th

Kasimer, Casmir, Kazmer

Casimir's International Variations

Kazimir (Czech) Kasimir (German) Casimiro (Spanish)


daggalexandra Says:


Yes! I love it except for the meaning :(

indiefendi2 Says:


Cool name to me, AWFUL meaning.

Peregrine19 Says:


My son is Casimir. It was my husband's grandfather. We call him Caz, and it certainly fits. I love it.

LostKid Says:


The meaning now reads "Destroyer of Peace"

FableJuno2222 Says:


I love this name my nephew is called Casimir Benjamin. His nickname is Casi

actingfun Says:


I love the name Casimir, especially with the nickname Caz. If anybody was wondering, the name is pronounced CAZ-i-meer. I know that was confusing when I first found it.

EW314 Says:


GP which would make a fabulous middle, or a first if I could summon the courage to do it. Cas is a cute, strong nickname which feels very wearable.

EW314 Says:


LOVE Cas and Casimir! Glad you love his name now - fabulous choice!

Kerri Says:


My son's name is Casimir- my husband's parents are from Poland. I didn't like it at first, but now I'm in love with the name. So strong and unique. He goes by Cas or Casi.

kitchi1 Says:


"Announcing Peace." What a great meaning.

LostMargaret Says:


This is totally importable. Caz? YES. Plus a brilliant meaning and a really cool St. Casimir. I would feel a little uncomfortable using it without any Slavic connections, though...

strawberrydino Says:


Casimir sounds strong & handsome, I love it!