Rairiz de Veiga is a municipality in the province of Ourense, within the autonomous community of Galicia in northwestern Spain. It belongs to the comarca (district) of A Limia.
The municipality is located in the southern part of Galicia, in an inland area of the province of Ourense. As a Galician municipality, it forms part of the region's local administrative structure, with the comarca of A Limia serving as its surrounding district.