Family name Prompaeng (Prompaeng 
) , around the globe, is a very rare surname. The last name Prompaeng is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
Kaeo, Phao, Srisuda, Nopporn, Kanokwan, Kanoknop, Phakaporn, Natnaran, Saengaroon, Ratchanee, Thodsapol, Nannaphat, Krittiyanee, and Pattaraporn