Buka, Papua New Guinea, the capital of Autonomous Region of BougainvilleBuka Rural LLG in Papua New GuineaBuka, Pomeranian Voivodeship (north Poland)Buka, Uzbekistan (Buká), a town in the Tashkent Province of UzbekistanBuka Island, the second largest island in the Papua New Guinean province of BougainvilleBuka (music), the opening of a gamelan compositionBuka cloak, a Noongar Southwest Australian indigenous word describing, usually, a kangaroo-skin cloak worn draped over one shoulder. reference