Janja (Serbian Cyrillic: Јања) is a town in Bijeljina, Republika Srpska, Bosnia and Herzegovina. It is known as a place where the confluence of the rivers Janja and Drina is situated. It is the only Bosniak community in the municipality and consists of many displaced persons from other parts of Bosnia and Herzegovina.

Janja is a small town near Bijeljina in northeast Bosnia, located on the major road between Bijeljina and Zvornik. Located in the center of Janja is the Atik Mosque. Janja has three mosques which have been rebuilt after the war.^{[citation needed]}

There is no exact accurate source of when Janja was founded. From 1878 to 1961, Janja was municipality center. The 1991 census showed Janja had a population of 10,458. Part of Janja lies on the opposite side of the Drina River from the rest of the municipality.

• FK Podrinje Janja

• Caffe Bosna
• Džedid Mosque
• Džedid Mosque
• View of Janja from the mosque
• Church of St. Elijah

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