Last name Sutiwat (สุทิวัส 
, สุทธิวัฒน์ , Sutiwat 
) , across the world, is a very rare family name. The last name Sutiwat is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much more frequently, Sutiwat is the forename as well as the last name.
Kavon, Chumsang, Khemngern, Laothong, Luangsod, Thimsungnoen, Napapong, Yuktawech, Samartkit, Sakdanarong, Chiewpatanacharoen, Kaewmuang, Khamhaeng, Prutthiprasert, Phichetbowornkul, Ruchirasrirat, Intaranet, Simtharakao, Chootrakool, Kliangsaard, Lorrattanaruengkit, Jutiamornloes, Chumintong, Chongragdee, Sreechay, Meesamrit, Sajtiprasert, Skunroenapa, Kabjai, Koomim, Haspak, Yoriya, Unsiam, Manerad, Mahamit, Sangnoi, Jirapathomsakul, Sungnoy, Srikuha, Arunsri, Boonmee, Kawiros, Pankaew, Promjad, Limjitsomboon, Nomkamnub, Nokkaew, Manuntapong, Supaluk, and Rattanachaichata