Last name Prompetch (Prompetch 
) , throughout the world, is a rare cognomen. The family name Prompetch is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Prompetch is the forename as well as the last name.
Supot, Nuttapun, Saowakhon, Kittitorn, Paramaporn, Passakorn, Premsinee, Nipaporn, Jittraporn, Thanomjit, Treepecth, Nattasorn, Phongsumal, Theerapong, Wachirawit, Tachakorn, Rattanaporn, Phongpat, Chaninun, Areeya, Amonsri, Chanin, Pitoon, Namfon, Mongkol, Porntiwa, Sirakun, Phanita, Jutamas, Nattaya, Namthip, Supattra, Stawanta, Pakawat, and Thanatchaporn