Kasjusz
Fewer than sixty men in Poland carry it, so most Poles have never met a Kasjusz. It comes from the Latin Cassius, with the blunt meaning "empty, vain".
Kasjusz Pronunciation
Kasjusz is pronounced KAHS-yoosh (/ˈkasjuʂ/).
What Kasjusz means
Where Kasjusz comes from and what it has meant to the people who carry it.
Kasjusz comes from the Roman name Cassius, and behind it sits the Latin adjective cassus, meaning empty or hollow. The Cassii were an old Roman clan, and the name moved through Latin long before it reached any Polish register. Its plain sense holds close to that root, próżny and pusty, empty and vain.
The best known bearer of the older form was Gaius Cassius Longinus, the senator who helped kill Julius Caesar in 44 BC. His name meant vanity centuries before anyone read a warning into the man. History gave the sound a sharp edge.
In a Polish class register today, Kasjusz stands apart from the Jakubs and Szymons around it. The Latin weight has not softened. A child who carries it also carries cassus, the old word for empty.
When Kasjusz celebrates name day
Kasjusz appears 3 times in the Polish name day calendar, never as a main name. The first of these dates is 15 May.
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 Kasjusz
1 in 402758 men in Poland is named Kasjusz. 53 people carry it in the 2025 register: rank #5150 among male names.
Kasjusz's popularity over time
Fewer than 2 boys were given the name in 2025. It has been stable for a decade.
Kasjusz as a middle name
Kasjusz is a first name for 53 men in Poland and a middle name for another 27, a 66/34 split. In the men's middle-name ranking it sits 1633rd, between Karsten (27) and Khang (27).
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#1631 Karel27
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#1632 Karsten27
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#1633 Kasjusz27
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#1634 Khang27
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#1635 Ludosław27