Oblast (Bosnian: oblast, Czech: oblast, Slovak: oblasÅ¥, , , Bulgarian: оÌблаÑÑ‚ ) refers to a subnational entity in some countries. Possible English translations of the word are area, zone, province or region; but is often referred to in English as oblast. In terms of administrative country subdivisions, the latter two translations may be inaccurate or confusing.