In Hindu mythology, Aja is the son of king Raghu, and thus a scion of the Ikshavaku dynasty, who claimed descent from the sun-God Surya. His paternal grandfather was the pious king Dileepa. King Aja's consort was the heavenly nymph Indumati; they were the parents of King Dasaratha of Ayodhya, who was the father of Rama.
In Yoruba mythology, Aja is an Orisha, patron of the forest, the animals within it and herbal healers, whom she taught their art.