Leza is a town and municipality in the province of Álava, in the Basque Country of northern Spain. It is one of the small municipalities that make up the province of Álava, whose capital is Vitoria-Gasteiz.
The municipality holds the status of both a town and a municipality, meaning it has its own local administrative government. It lies within the autonomous community of the Basque Country, one of Spain's seventeen autonomous communities, located in the country's north.
Leza shares its name with other places in Spain, including a municipality in the province of Burgos, but this article concerns the Álava municipality in the Basque Country.