Jadar

Jadar may refer to:

• Jadar (Drina), a river in western Serbia, tributary to the Drina
• Jadar (Drinjača), a river in eastern Republika Srpska, Bosnia and Herzegovina, tributary to the Drinjača
• Studeni Jadar (Cold Jadar), a river in eastern Republika Srpska, Bosnia and Hercegovina, tributary to the Jadar
• Jadar (Serbia), a region surrounding the Jadar river in western Serbia
• Jadar (mineral), the mineral's chemical formula: sodium lithium boron silicate hydroxide .
• Jadar, Yemen