Kozjak

Kozjak is a common South Slavic toponym derived from koza ("goat") that may refer to:

Austria

 * Kosiak, a mountain in the Karawanks in southern Austria

Bosnia and Herzegovina

 * Kozjak (Lopare), a village near Lopare, Bosnia and Herzegovina

Bulgaria

 * Kozjak or Kozyak, a medieval name of Obzor
 * Kozyak, Bulgaria, a village in Silistra Province

Croatia

 * Kozjak Island, an uninhabited islet near Lošinj, Croatia
 * Mali Kozjak, a mountain on the Croatian Adriatic coast
 * Veliki Kozjak, a mountain in the Croatian Dalmatian Zagora
 * Kozjak, Bilje, a settlement in Croatian Baranja
 * Kozjak Lake, the largest of the Plitvice Lakes
 * Kozjak, Zagreb, a neighbourhood in Maksimir, Zagreb

North Macedonia

 * Kozjak (Prilep), a mountain in North Macedonia
 * Kozjak Hydro Power Plant, with an eponymous artificial lake in North Macedonia
 * Kozjak, Resen, a village in Resen Municipality, North Macedonia
 * Kozjak, Karbinci, a village in the Municipality of Karbinci, North Macedonia
 * Kozjak (mountain near Pčinja), a mountain in North Macedonia and Serbia
 * Kozjačija (Kozjačija), a region in North Macedonia and Serbia

Serbia

 * Kozjak (mountain near Pčinja), a mountain in Serbia and North Macedonia
 * Kozjačija (Kozjačija), a region in Serbia and North Macedonia
 * Kozjak (Loznica), a village near Loznica, Serbia
 * Novi Kozjak, a village near Alibunar, Serbia

Slovenia

 * Kozjak Castle, a castle ruin near Trebnje, Slovenia
 * Kozjak Mountains, north of the Drava Valley in northeastern Slovenia and southeastern Austria
 * Kozjak subdialect
 * Kozjak Pass, a mountain pass in the Kamnik–Savinja Alps in northern Slovenia

Settlements

 * Kozjak, Mislinja, a village near Mislinja, Slovenia
 * Kozjak nad Pesnico, a village in the Municipality of Kungota, northeastern Slovenia
 * Kozjak pri Ceršaku, a village in the Municipality of Šentilj, northeastern Slovenia
 * Paški Kozjak, a village in the Municipality of Velenje, northeastern Slovenia
 * Kozjak, a hamlet of Zabukovje in the Municipality of Šentrupert, southeastern Slovenia