Valderejo is a concejo in the municipality of ValdegovÃÂa/Gaubea, in ÃÂlava province, Basque Country, Spain. It contains the hamlets of (the capital of the concejo) and , as well as the depopulated settlements of and Ribera. It is conterminous with the . It was an independent municipality until 1966, when it was absorbed by ValdegovÃÂa.