Surname Aniwa (Aniwa 
) , all over the world, is a rare last name. The last name Aniwa is characteristic of Ghana, where it is quite a rare surname, Indonesia, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Ghana, Indonesia, and Nigeria. Much less frequently, Aniwa is the forename as well as the last name.