Jadar may refer to:
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Jadar (Drina), a river in western Serbia, tributary to the Drina
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Jadar (Drinjača), a river in eastern Republika Srpska, Bosnia and Herzegovina, tributary to the
Drinjača
* (''Cold Jadar''), a river in eastern Republika Srpska, Bosnia and Herzegovina, tributary to Jadar (Drinjača)
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Jadar (Serbia), a region surrounding the Jadar river in western Serbia
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Jadar (mineral), sodium lithium boron silicate hydroxide
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Jadar, Yemen
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Jæren
Jæren is a Districts of Norway, traditional district in Rogaland county, Norway. The other districts in Rogaland are Dalane, Ryfylke, and Haugalandet. Jæren is one of the 15 districts that comprise Western Norway.
At about , Jæren is the large ...
, a flatland area central to Rogaland, Norway
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