Hoya is a genus of tropical plants in the family Asclepiadaceae. Many species are popular houseplants in temperate areas, grown for their attractive foliage and strongly scented flowers.

See also: Nishi-tokyo,_Tokyo, previously called Hoya

See also: Hoya, a city in Lower Saxony, Germany.

The Hoya is also the mascot of Georgetown University. Many years ago, students well-versed in the classical languages invented the mixed Greek and Latin chant of "Hoya Saxa," translating roughly as "What Rocks," in reference to both the stalwart defense of the football team and the stone wall that surrounded the campus. ('Hoia' is Greek for 'what' or 'what a,' and 'saxa' is Latin for 'rocks.')