Surname Niaga (Niaga 
, Няга 
) , in all the world, is quite a rare family name. The cognomen Niaga is characteristic of Papua New Guinea, where it is quite a rare surname, Senegal, where it is a rare surname, and Indonesia. In absolute terms, it is the most numerous in Indonesia, Philippines, and Russia. Very seldom, Niaga is the forename as well as the last name.