Aja or AJA may refer to:

Acronyms

*AJ Auxerre, a French football club *Ajaccio Napoleon Bonaparte Airport's IATA airport code *Al Jazeera America, an American news channel *American Jewish Archives *''American Journal of Archaeology'' *, a German organization of non-profit youth exchange groups *The Association of Japanese Animations *Australian Journalists Association, part of the Media, Entertainment and Arts Alliance

Anthropology

*Aja people, a people living in Benin **Aja language (Niger–Congo), the language of the Aja people, part of the Gbe dialect continuum *Aja people (South Sudan), an ethnic group living in South Sudan **Aja language (Nilo-Saharan), a language spoken in Sudan

Gods

*Aja (Hindu mythology), a prince of the Ikshvaku dynasty *Aja (orisha), a Yoruba spirit * Aja, another name of the Hindu god Shiva

Music

*Aja (album), ''Aja'' (album), a 1977 Steely Dan album ** Aja (song), "Aja" (song), the title track of that album *''Aja!'', a 2015 Maija Vilkkumaa album

People

*Aja (name) *Aja (entertainer) (born 1994), drag performer and television personality

Places