Cognomen Váca (Váca 
) , in all the world, is a very rare surname. The last name Váca is characteristic of Eastern Europe, particularly Czechia, where it is a rare surname.
| rudolf váca CZ (b. 1879) |
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| štěpán váca CZ (b. 1891) |
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| jan váca CZ (b. 1912) |
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| václav váca Czech artist, CZ (b. 1948) |
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| oldřich váca Czech member of Czech Parliament (1992–1996) and member of Czech National Council, CZ (b. 1952) |
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