Family name Ниа (Nia 
, Ниа 
) , across the world, is a common cognomen. The cognomen Ниа is characteristic of Georgia, where it is quite a common surname, Algeria, and Brunei (explore the name in all countries). Measured by absolute frequency, it is commonest in Indonesia, Algeria, and Egypt. More prevalently, Ниа is the forename as well as the last name.