NK Mladost may refer to:NK Mladost 127, former name of the Croatian club HNK Suhopolje NK Mladost Cernik, Croatian club based in Cernik NK Mladost Proložac, Croatian club based in Proložac NK Mladost Lištica, former name of NK Široki Brijeg used from the late 1950s to 1991 NK Mladost Prelog NK Mladost Ždralovi NK Mladost Kranj, former name of NK Sava Kranj used from 1945 to 1974