Gradac may refer to:
- Gradac, Split-Dalmatia County, a town in southern Croatia
- Gradac, Požega-Slavonia County, a village in eastern Croatia
- Gradac, Šibenik-Knin County, a village near Ružić in southern Croatia
- Gradac, Slovenia, a village in Slovenia
- Gradac (river), a river in Serbia
- Gradac monastery, a medieval monastery in Serbia
- Gradac, Montenegro, a village in Montenegro
- Gradac (Batočina), a village in Serbia
- Gradac (Brus), a village in Serbia
- Gradac (Ivanjica), a village in Serbia
- Gradac (Raška), a village in Serbia
- Gradac (Sjenica), a village in Serbia
- Gradac (Tutin), a village in Serbia
- Gradac (Derventa), a village in Bosnia and Herzegovina
- Gradac (Foča), a village in Bosnia and Herzegovina
- Gradac (Goražde), a village in Bosnia and Herzegovina
- Gradac (Hadžići), a village in Bosnia and Herzegovina
- Gradac (Kakanj), a village in Bosnia and Herzegovina
- Gradac (Kiseljak), a village in Bosnia and Herzegovina
- Gradac (Pale), a village in Bosnia and Herzegovina
- Gradac (Posušje), a village in Bosnia and Herzegovina