Family name นิธิรักษ์ (นิธิรักษ์ 
, Nithirak ) , in the world, is a very rare last name. The family name นิธิรักษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, นิธิรักษ์ is the forename as well as the last name.