Kasja
Fewer than three dozen women in Poland carry it, so most people have never met one. A rare offshoot of Katarzyna, rooted in the Greek word for "pure".
Kasja Pronunciation
Kasja is pronounced KAHS-yah (/ˈkasja/).
What Kasja means
Where Kasja comes from and what it has meant to the people who carry it.
Kasja belongs to a large Polish family. Its parent is Katarzyna, and Kasia is the everyday diminutive most people reach for. The root is Greek. The name traveled from Greek forms into Polish, and Kasja is one of its shorter branches.
The meaning given as "pure," czysta in Polish, was attached to the name later. Greek katharos means clean or pure, and the sound of Katarzyna drew that word toward it over the centuries. The sense of purity is a story told about the name rather than its first cause.
On a school class register, Kasja may sit a line above a Katarzyna and beside a Kasia. The three forms share one Greek root.
The name stays short. Three syllables, Greek at the root, "pure" as its adopted meaning.
When Kasja celebrates name day
Kasja appears 1 time in the Polish name day calendar, never as a main name. The first of these dates is 29 June.
Rarer dates. Only the most complete calendars add this name on these days. Most skip them, so hardly anyone celebrates then.
How many people are named Kasja
1 in 683146 women in Poland is named Kasja. 33 people carry it in the 2025 register: rank #7002 among female names.
Kasja's popularity over time
Fewer than 2 girls were given the name in 2025. It has been stable for a decade.
Kasja as a middle name
Kasja is a first name for 33 women in Poland and a middle name for another 13, a 72/28 split. In the women's middle-name ranking it sits 2089th, between Karmena (13) and Kathrine (13).
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#2087 Kaliksta13
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#2088 Karmena13
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#2089 Kasja13
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#2090 Kathrine13
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#2091 Keira13