Family name Havlas (Havlas 
) , in the entire world, is a rare surname. The surname Havlas is characteristic of Czechia, where it is quite a rare surname, Slovakia, where it is a rare surname, and Norway, where it is a very rare surname. Measured by absolute frequency, it is commonest in Czechia, Slovakia, and Germany.
| VARIANT | COUNTRY |
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| Havlas | Canada, Slovakia, United States, Czechia, Germany |
| františek havlas CZ (b. 1857) |
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zdeněk havlas Czech chemist, CZ (b. 1951) |
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| ladislav havlas CZ (b. 1907) |
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| jaroslav havlas CZ (b. 1924) |
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| josef havlas CZ (b. 1945) |
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| jakub havlas CZ (b. 1971) |
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| vojtěch havlas CZ (b. 1971) |
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Mr, Lukas, Lukã, Lubos, Janet, James, Jakub, Josef, Jozef, Jirka, Libor, Tomas, Filip, Ondã, Čoky, Martin, Miloš, Michal, Stepan, Jiří, Monique, Vojta, Glaci, David, Daryl, Jan, Tom, Mark, Matt, Ales, Adam, Petr, Pepa, Rosa, Jaci, Jiri, Jiã, Marek, Milan, Aleš, Karel, Kiley, Pavel, Peter, Radek, Roman, Michael, and Dominik