Brieva is a municipality in the province of Segovia, within the autonomous community of Castile and León, Spain. It is located at approximately 41°2′5″N 4°3′14″W, in the central part of the Iberian Peninsula.
The town lies in the northern meseta of Spain, a region characterised by a continental climate with cold winters and hot, dry summers. Like many settlements in Segovia province, it is small in population and sits within a rural landscape of farmland and open countryside.
Brieva is one of numerous municipalities that make up the sparsely populated territory of inland Castile and León, an area known for its historic villages, Romanesque architecture and agricultural traditions.