Family name Groznik (Groznik 
) , across the world, is a rare last name. The last name Groznik is habitual in Slovenia, where it is quite a common surname, Australia, where it is a rare surname, and Croatia. Measured by absolute frequency, it most frequently occurs in Slovenia, Bangladesh, and Australia.
| VARIANT | COUNTRY |
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| Groznik | Slovenia, Australia, Argentina, Bangladesh, United States |
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bostjan groznik Slovene ice hockey player (1982-), SI (b. 1982) |
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| peter groznik SI (b. 1949) |
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| katarina groznik SI (b. 1963) |
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| aleš groznik SI (b. 1970) |
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| peter groznik SI (b. 1973) |
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| vida groznik SI |
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| eva groznik SI |
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Mr, Marko, Matej, Silva, Chris, Brian, Katie, Peter, Grega, Linda, Lucia, Janez, Jelka, Frank, Wayne, Wendy, Matias, Soraya, Aleša, Alicia, Albert, Andrea, Maria, Amanda, Ziga, Tina, Ms, Jo, Ana, Ron, Rok, Lee, Ula, Marc, Matt, Miha, Sean, Beth, Boã, Brad, Kurt, Ryan, Gary, Leah, Jani, Jose, Joze, Nina, and Carlos