Ključ

Ključ may refer to:


 * Ključ, Una-Sana Canton, a town in Bosnia and Herzegovina
 * Ključ, Gacko, a village in Bosnia and Herzegovina
 * Ključ, Varaždin County, a village near Novi Marof, Croatia
 * Ključ, Šibenik-Knin County, a village near Drniš, Croatia
 * Ključ (Belgrade), a hamlet of Bečmen, Serbia
 * Ključ, Mionica, a village in Serbia
 * Ključ (film), a 1965 Croatian film
 * Ključ Brdovečki, a village near Brdovec, Croatia
 * Klyuch, the village in Bulgaria also transliterated as Ključ