Sunja may refer to:
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Sunja, Sisak-Moslavina County
Sunja is a municipality in Croatia in the Sisak-Moslavina County.
Population
The municipality has a total population of 5,748 (census 2011), in the following naselje, settlements:
* Bestrma, population 86
* Bistrač, population 40
* Blinjska ...
, a village and municipality in Croatia
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Sunja (Sava), a river in Croatia
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Sunja River or Sunzha River, a river in Russia
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Sunja (name), a Korean female given name
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