Last name Kusmuk (Kusmuk 
) , throughout the world, is a rare cognomen. The surname Kusmuk is habitual in Southern Europe, particularly Bosnia and Herzegovina, where it is quite a common surname, Serbia, where it is quite a rare surname, and Croatia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Bosnia and Herzegovina, Serbia, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Kusmuk | Bosnia and Herzegovina, Australia, United States, Serbia, Argentina |
| dragan kusmuk Yugoslavian judoka (b. 1955) |
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| bojan kusmuk basketball player (1969-), RS (b. 1969) |
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| sanja kusmuk Bosnian cross-country skier and biathlete, BA (b. 1996) |
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Mr, Jelena, Tijana, Nikola, Nevena, Mariana, Milutin, Mirjana, Michael, Michele, Andjela, Antonio, Dragana, Gordana, Nebojsa, Miroslav, Angelica, Graciela, Nicolás, Veronica, Danilo, Branka, Srdjan, Stefan, Ana, Mark, Matt, Mira, Mike, Jana, Juan, Igor, Maria, Vladimir, Marko, Sanja, Darko, Nadja, Zoran, Marion, Marija, Milena, Milica, Sergio, Milan, and Srebrenka