Kazia is a Slavic diminutive of Kazimiera or related forms, associated with proclaiming peace or order.
Kazia traces two possible lineages, both fragrant. The more direct path leads to Keziah (also spelled Kezia or Kesia), a Hebrew name meaning "cassia" — the aromatic bark of the Cinnamomum cassia tree, a spice prized across the ancient Near East. In the Book of Job, Keziah is the name of Job's second daughter, born after his restoration from suffering, and listed alongside her sisters Jemimah and Keren-Happuch as among the most beautiful women of their age.
The name thus carries both botanical sweetness and a biblical story of renewal after loss. The second path runs through Eastern Europe, where Kazia functions as an informal or affectionate variant of Kazimiera — the feminine form of Kazimierz, a Slavic name built from the roots kazi ("to destroy") and mir ("peace" or "world"). The great Polish saint Kazimierz, patron of Poland and Lithuania, died in 1484 and remains venerated across Central Europe.
In Polish families, Kazia (like Kasia for Katarzyna) operates as a warm, familiar diminutive — the kind of name grandmothers use. In contemporary naming, Kazia occupies an appealing middle ground: familiar enough in sound to be accessible, unusual enough in spelling to feel individual. Whether understood through a Hebrew or Slavic lens, it carries pleasant associations — spice and beauty in one reading, peace and European heritage in another. Its soft consonants and open final vowel give it an unhurried, melodic quality that ages gracefully.