Duga may refer to:
Duga (moth), a synonym of a genus of moths Duga radar, Soviet radar system deployed 1976–1989 Duga (magazine), Yugoslav and Serbian weekly news magazine Shaft bow, element of horse harness to attach to vehicle shaft
Geography Duga Island, island in Adriatic Sea, belonging to Croatia Duga Resa, municipality in Karlovac County, Croatia Duga, Podgorica, town in Podgorica Municipality, Montenegro Duga, Nikšić, town in Nikšić Municipality, Montenegro Duga, Štimlje, town in Štimlje municipality, Kosovo