Family name Mlađan (Mlađan 
) , in the entire world, is a rare surname. The cognomen Mlađan is habitual in Southern Europe, particularly Croatia, where it is quite a rare surname. Likewise, Mlađan is the forename as well as the last name.
| mlađan cunjak RS (b. 1945) |
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| milan mlađan basketball player, RS (b. 1961) |
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| dušan mlađan Swiss basketball player, CH (b. 1986) |
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| marko mlađan Swiss basketball player, CH (b. 1993) |
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