Kasimiera as a Baby Name. Meaning and Origin of Kasimiera

What is the meaning of the name Kasimiera ?

The baby name Kasimiera is a Female name , 5 syllables long and is pronounced /kaɕiˈmʲɛra/ (Polish); approx. "kah-shee-MYEH-rah".

Kasimiera is Slavic in Origin.

Kasimiera is the feminine counterpart of Casimir (Polish Kazimierz), from the Slavic elements kaziti “to spoil, to destroy” and mir “peace, world.” While the older literal reading suggests “one who destroys peace,” medieval and later devotional tradition reshaped it to a positive sense, “bringer/keeper of peace,” which is the meaning most associated with the name today.

In use across Poland and the Baltic since the veneration of Saint Casimir (15th c.), the feminine spread in the 19th–20th centuries in Catholic communities and diaspora. Spelling varies: Kazimiera (standard Polish), Kazimira (Lithuanian, Czech/Slovak, Russian), and Casimira (Spanish, Portuguese, English), with Kasimiera as a regional or transliterated form. Common short forms include Kazia and Mira. Name-days often fall on 4 March, Saint Casimir’s feast.

⚙ We can't find Kasimiera in any of the birth registries or name datasets we track. Most often that means a rare name, a regional or heritage one, or a recent coinage. Either way, it remains a genuinely rare choice.