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Worldwide, อาจา (Aja , Ajah , Aaja ) is a common unisex given name. The given name อาจา is characteristic of Nigeria, where it is quite a common gender-neutral name, Gambia, where it is quite a common female name, and Bahamas, where it is quite a rare feminine name. In absolute terms, it most frequently occurs in Nigeria, India, and the United States. More prevalently, อาจา is the last name as well as the forename.
อาจา is also a name for the fictitious and mythical characters: Aya Brea , the fictional character from Parasite Eve, Parasite Eve II; Aya Miyakoōji , the fictional character from Ro-Kyu-Bu!; Aya Shameimaru , the fictional character of Touhou Project, Phantasmagoria of Flower View; Aja , the 38th king in the Solar Dynasty, Ramayana and Aya Natsume , the character of Tenjho Tenge.