Diademed Tanager
Stephanophorus diadematus
- Least concern
- Card rarity: Common
- Birds

The diademed tanager is a species of Neotropical bird in the tanager family Thraupidae. It is the only member of the genus Stephanophorus. It is purple-blue with a white crown characterised by a small red patch, and it is found mostly in open areas in southern Brazil, northeast Argentina, and Uruguay.
Classification
- Class
- Aves
- Order
- Passeriformes
- Family
- Thraupidae
- Genus
- Stephanophorus