Cognomen ณัฐณัฐ (Natanat 
, Nathanat , ณัฐณัฐ ) , in the world, is a very rare surname. The surname ณัฐณัฐ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, ณัฐณัฐ is the forename as well as the last name.