Surname Niyomyart (Niyomyart 
) , globally, is a very rare family name. The last name Niyomyart is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
Anan, Narong, Siriluk, Phailaiwan, Dachanee, Ittikorn, Choocheep, Choochepp, Kamolporn, Nonthawat, Nopparath, Atsadaporn, Chainarong, and Thanunchai