Surname Nithiwit (Nithiwit 
) , across the world, is an extremely rare cognomen. Much more prevalently, Nithiwit is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nithiwit | Thailand |
Apaiwong, Kantasa, Eiamthong, Insalee, Arthimokyothin, Chokrojanapreecha, Kawprasert, Ninwichian, Hiranpeeradej, Sattathanachaiphat, Panasittivana, and Wachirapunyawut