Samaniego is a town and municipality in the province of Araba (Álava), in the Basque Country of northern Spain. It is one of the municipalities that make up the Rioja Alavesa comarca, a wine-producing district within Araba.
The town lies in the Ebro river valley in the south of the province, close to the border with the autonomous community of La Rioja. Like other settlements in the area, it is surrounded by vineyards and is associated with the production of Rioja wine.