In the world, Boleslovas (Болеслав 
, Boleslovas 
) is quite a rare male forename. The first name Boleslovas is characteristic of Lithuania, where it is quite a rare boy's name, Ukraine, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Болеслав | Bulgaria, Russia, Kazakhstan, Ukraine, Belarus |
| Boleslovas | United States, Lithuania, Brazil |
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boleslovas kajetonas koliška One of the leaders of the January Uprising of 1863., LT (b. 1837) |
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boleslovas buika Polish painter, LT (b. 1876) |
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boleslovas dirmantas LT (b. 1882) |
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| boleslovas radavičius LT (b. 1863) |
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| boleslovas liutikas Lithuanian politician, LT (b. 1884) |
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| boleslovas jonas masiulis Lithuanian politician (1889-1965), LT (b. 1889) |
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| boleslovas jakutis (b. 1890) |
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| boleslovas stulpinas Lithuanian Righteous Among the Nations, LT (b. 1905) |
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| boleslovas ambrazas LT (b. 1900) |
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| boleslovas adomas motuza matuzevičius Lithuanian designer, LT (b. 1910) |
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| boleslovas juškevičius Lithuanian actor, LT (b. 1920) |
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| boleslovas klova Lithuanian artist (1927-1986), LT (b. 1927) |
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| boleslovas martinėnas LT (b. 1919) |
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| boleslovas povilas dačiulis Lithuanian poet, LT (b. 1934) |
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| boleslovas babrauskas (b. 1926) |
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Grina, Kulpis, Zainis, Momgaudas, Medelis, Vengrys, Zubrick, Rymantas, Balbierius, Kazlauskas, Dorofejevas, and Urbonavicius