An oblast (; also UK: ; Cyrillic (in most languages, including Russian and Ukrainian): область, Bulgarian: област) is a type of administrative division of Belarus, Bulgaria, Kazakhstan, Kyrgyzstan, Russia, and Ukraine, as well as the former Soviet Union and the Kingdom of Yugoslavia.
Official terms in successor states of the Soviet Union differ, but some still use a cognate of the Russian term, e.g., vobłasć (voblasts, voblasts', official orthography: вобласць, Taraškievica: вобласьць, [ˈvobɫasʲtsʲ]) is used for regions of Belarus, oblys (plural: oblystar...