Barbadillo de Herreros is a municipality in the province of Burgos, within the autonomous community of Castile and León, Spain. It is a small village located in the mountainous area known as the Sierra de la Demanda.
The settlement lies in the northern part of the Iberian Peninsula, in terrain characterised by the uplands of the Sierra de la Demanda range. Its setting within this mountainous region is the defining feature of its geography.