Surname สิทธิณรงค์ (สิทธิณรงค์ 
, Sittinarong ) , globally, is a very rare last name. The last name สิทธิณรงค์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, สิทธิณรงค์ is the forename as well as the last name.