Cognomen Promsut (Promsut 
) , in the world, is quite a rare surname. The family name Promsut is habitual in South-eastern Asia, particularly Thailand, where it is quite a rare surname.
Dom, Gunyagin, Gunyajin, Jaruwan, Jiranun, Taradon, Namthip, Nongyao, Onanong, Onnicha, Weeraya, Sahapong, Boonpong, Khanison, Kittinut, Kitjasit, Piyachock, Phennapa, Juleerat, Jutakarn, Jirapron, Tanakrit, Phichit, Phanrit, Pitchutita, Pramote, Atit, Dome, Manop, Pimsa, Rawat, Ticky, Wiwat, Somsak, Sopita, Arporn, Tansinee, Peamika, Pramot, Pincha, Pisood, Phinyo, Jaruek, Narong, Natcha, Sudarat, Suyanee, Prathip, Pemika, and Narathip