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In the world, Isaiya (Isaiya , Исаия , Исайя) is a very rare gender-neutral forename. The first name Isaiya is habitual in Nigeria, where it is an extremely rare epicene name, and India, where it is an extremely rare largely boy's, but uncommonly girly name. Much less frequently, Isaiya is the last name as well as the forename.
Isaiya is also a name for the fictitious and mythical characters: Isaiah , the Israelite prophet, Isaiah.