Last name Janza (Janza 
, Янза 
, Янша ) , in all the world, is a rare family name. The last name Janza is characteristic of Slovenia, where it is quite a rare surname, Hungary, and Argentina, where it is a rare surname. Much less frequently, Janza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janza | Germany, Czechia, Hungary, Argentina, Slovenia |
| Янза | Kyrgyzstan, Russia, Belarus |
| Янша | Russia |
| janza károly Hungarian military officer (1914-2001), HU (b. 1914) |
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| vladimír janza Czechoslovak minister of planning and slovak nation politician, SK (b. 1929) |
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| hans-jürgen janza German film actor and stage actor, DE (b. 1934) |
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| honour janza Zambian football manager, ZM (b. 1960) |
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| horst janza |
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Mr, Mabel, Mirta, Sonia, Adela, Boris, Brian, Paula, Pablo, Peter, Mayra, Pedro, Reina, Delia, Diego, Lidia, Lucas, Lucky, Jorge, Joana, Julio, Ramon, Marco, Marta, Mario, Ms, Ada, Jim, Mara, Sara, Akos, Cata, Paul, Raul, Rosa, Greg, Leti, Luis, Jane, Jose, Jova, Juan, Emma, Ines, Olga, Maria, Norma, and Erich