Family name Наг (Nag 
, Наг 
) , in the world, is a widespread surname. The surname Наг is habitual in India, where it is quite a common surname, Bangladesh, where it is quite a rare surname, and Norway. Not in comparison with a country's population, it most frequently occurs in India, Bangladesh, and Myanmar. Very seldom, Наг is the forename as well as the last name.