Family name Natthawat (ณัฐวัฒน์ 
, ณัฐวัตร , Natthawat 
, and others...) , all over the world, is a very rare surname. The last name Natthawat is characteristic of Thailand, where it is a very rare surname, Australia, and Cambodia. Much more prevalently, Natthawat is the forename as well as the last name.
Nisan, Yavichaichularp, Suriyasak, Bunphoonga, Khomchiap, Phongchit, Photchaimongkhon, Pliancharoen, Kaewrakmuk, Khwanmuang, Phongwarin, Thiengtham, Nitisuwannakul, Viangthongsarat, Promboonkaew, Phuwaloedphithak, Lertlakkhanawong, Jirathitiwong, Thammachada, Akkarachattarat, Hanucharoenkul, Sukjaroenkraisri, Tipsurart, Thunputdom, Thangeon, Thanawut, Kabsri, Wongsa, Samakpong, Saetang, Sreekum, Chaimon, Paruemon, Rassapa, Dechrit, Lekwilai, Kaeokhongthamkun, Limthao, Sawedsiraphong, Somphong, Srinurak, Awichaniroth, Chairoek, Chongbut, Chobphol, Ketmunin, Dolwattanan, Jaruwong, Noichan, and Rattanapatimakorn