Surname Niwat (นิวัฒน์ 
, Niwat 
, นิวัติ , along with others...) , globally, is a rare last name. The last name Niwat is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and Cambodia. Not in comparison with a country's population, the name is most common in Thailand, China, and Malaysia. Predominantly, Niwat is the forename as well as the last name.
Sasuk, Sangwiroon, Singkaling, Chaiyasit, Chuangthep, Boonthoop, Kaewkantee, Puthichote, Lorissaratrakul, Jankaenkaew, Thatchamnong, Thongauprakarn, Niyomdecha, Hongchuta, Ounahasontipairode, Watchasit, Silamaneerat, Jariyapaisansin, Thammasaen, Enguthaiwat, Thanaboonyang, Meemongkolkiat, Maneekarn, Manawongsakul, Traiphit, Limprukkasem, Saivaew, Kulsri, Punnoi, Litviwat, Narato, Vongsa, Srewaiyapram, Wanchom, Wongjun, Uatrakanwiwat, Intarasombat, Sawatkaew, Suthikorn, Sopawang, Chaisang, Korboonchuay, Kijwiriyakul, Parawasa, Promkhot, Phutwanphen, Ruksatan, Didprasop, Sirivong, and Warawutwitayanan