The Indigo Grosbeak (Cyanoloxia glaucocaerulea), also known as the Glaucous-blue Grosbeak, is a species of bird in the Cardinalidae family. It is the only member of the genus Cyanoloxia. It is found in Argentina, Brazil, and Uruguay.

Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist shrubland, and heavily degraded former forest.