Cognomen Prompruk (Prompruk 
) , all around the world, is a rare last name. The cognomen Prompruk is characteristic of Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Prompruk is the forename as well as the last name.
Tavee, Thunyapong, Pongsakorn, Chamaiporn, Praphaporn, Chuleerat, Nijjaree, Thanyada, Juthamas, Phisamai, Korrakod, Amornrat, Jatunut, Virotn, Pichet, Kesorn, Nattanakorn, and Patcharapon