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Boleslaus
How to Pronounce Boleslaus
Pronounced BOH-luh-slaws /ˈboʊləslaʊs/Medium
Meaning: Boleslaus is the Latinized form of the Polish Boleslaw, joining the Slavic bole, 'more' or 'greater', with slav, 'glory' or 'fame' — 'greater glory'. Borne by medieval Polish dukes and kings, it reached American records with Polish immigrant families, who often used the Latin school-form on documents.Medium
Popularity in the U.S. · SSA data
U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.
SSA data updated May 2026. How we source & verify this data.
History & Origin
Boleslaus is the Latin form of the Polish Boleslaw, from bole, 'greater', and slav, 'glory'. A royal name in medieval Poland, it entered United States records with Polish immigrants in the early twentieth century, often written in this classical spelling.
It was always rare in America, reaching only a couple dozen boys a year around 1923 before fading within a generation. A Boleslaus from that time belongs to a great-grandfather's era now, and the name carries strong Polish heritage.
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Frequently Asked
What does the name Boleslaus mean?
It's a Latinized form of the Polish Boleslaw, 'greater glory'.
How do you pronounce Boleslaus?
It's said BOH-luh-slaws /ˈboʊləslaʊs/, three syllables, stress on the first.
Is Boleslaus a boy or girl name?
Boleslaus is used as a boy's name.
Is Boleslaus a popular name?
No, it was always rare in America, a Polish-heritage name seen only faintly in the early twentieth century.