The Požega Valley is a geographic microregion of Croatia, located in central Slavonia, encompassing the eastern part of the Požega-Slavonia County. It is located in the Pannonian Basin, bounded by Psunj, Papuk and Krndija mountains from west and north, and Požeška Gora and Dilj from south and east, as the Pannonian plain is interspersed by horst and graben structures. The largest settlement in the region is the city of Požega, followed by Pleternica and Kutjevo. The main watercourse in the region is Orljava River. The region covers 1,249 square kilometres and has a population of 60,599.

Slavonia is, with Dalmatia, Croatia proper, and Istria, one of the four historical regions of Croatia. Located in the Pannonian Plain and taking up the east of the country, it roughly corresponds with five Croatian counties: Brod-Posavina, Osijek-Baranja, Požega-Slavonia, Virovitica-Podravina, and Vukovar-Syrmia, although the territory of the counties includes Baranya, and the definition of the western extent of Slavonia as a region varies. The counties cover 12,556 square kilometres or 22.2% of Croatia, inhabited by 806,192—18.8% of Croatia's population. The largest city in the region is Osijek, followed by Slavonski Brod and Vinkovci.