- raja, rajah - a Hindu prince or king in India
--1 is a kind of aristocrat, blue blood, patrician
- Raja, genus Raja - type genus of the family Rajidae
--2 is a kind of fish genus
--2 is a member of Rajidae, family Rajidae
--2 has members:gray skate, Raja batis; little skate, Raja erinacea; thorny skate, Raja radiata; barndoor skate, Raja laevis