Surname Blažka (Blažka 
) , in the entire world, is a very rare cognomen. The cognomen Blažka is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname. More prevalently, Blažka is the forename as well as the last name.
| františek de pauli blažka CZ (b. 1866) |
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| antonín blažka CZ (b. 1872) |
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| vladimír blažka Czechoslovakian resistance fighter and assassin, CZ (b. 1920) |
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| pavel blažka Czech physiologist and professor (1928-2016), CZ (b. 1928) |
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| josef blažka (b. 1919) |
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blažka müller pograjc SI |
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| jan blažka Czech soccer player, CZ (b. 1970) |
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| blažka andolšek badminton player, SI (b. 1980) |
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