Mladost (meaning "youth" in Slavic languages) may refer to:

Placenames

• Mladost, Sofia, municipality of Sofia, Bulgaria
• Mladost, Varna, municipality of Varna, Bulgaria
• Mladost, Obrenovac, municipality of city Obrenovac, Serbia.

Association football clubs

• NK Mladost 127, former name of the Croatian club HNK Suhopolje
• FK Mladost Apatin, Serbian club based in Apatin
• FK Mladost Bački Jarak, Serbian club based in Bački Jarak
• FK Mladost Bački Petrovac, Serbian club based in Bački Petrovac
• FK Mladost Bosilegrad, Serbian club based in Bosilegrad
• FK Mladost Carev Dvor, Macedonian club based in Carev Dvor
• NK Mladost Cernik, Croatian club based in Cernik
• FK Mladost Gacko, Bosnian club based in Gacko
• FK Mladost Lončari, Bosnian club based in Lončari
• FK Mladost Lučani, Serbian club based in Lučani
• OFK Mladost Lješkopolje, Montenegrin club based in Donja Gorica, Podgorica
• FK Mladost Medoševac, Serbian club based in Medoševac
• FK Mladost Novi Sad, Serbian club based in Novi Sad
• FK Mladost Podgorica, Montenegrin club based in Podgorica
• NK Mladost Proložac, Croatian club based in Proložac
• FK Mladost Sandići, Bosnian club based in Sandići

Basketball clubs

• KK Mladost Bački Jarak, Serbian club based in Bački Jarak
• KK Mladost Omoljica, Serbian club based in Omoljica
• KK Mladost Mrkonjić Grad, Bosnian club based in Mrkonjić Grad
• KK Mladost SP, Serbian club based in Smederevska Palanka
• KK Mladost Vesna, Serbian club based in Bela Palanka
• KK Mladost Veternik, Serbian club based in Veternik, Novi Sad
• KK Mladost Zaječar, Serbian club based in Zaječar
• KK Mladost Zemun, Serbian club based in Zemun

Other sports clubs

• Mladost (sports society), Croatian sports society based in Zagreb
  • HAOK Mladost, volleyball section
  • HAVK Mladost, water polo section
  • HAKK Mladost, basketball section
• KHL Mladost, Croatian ice hockey club based in Zagreb