Family name Jaengkrajang (Jaengkrajang 
) , all over the world, is a rare cognomen. The cognomen Jaengkrajang is characteristic of Thailand, where it is a rare surname, and the United Kingdom, where it is an extremely rare surname.
Tan, Waraporn, Sathithorn, Patrathida, Rungnapha, Jureeporn, Suchawadee, Jirapong, Patrawadee, Pattaranun, Phanthipha, Duangkamon, Thanatchaya, Phattaratida, Phattaranun, Pattaratida, Rungarun, Ronakrit, Pimaksorn, Taen, Opas, Sirima, Ampaka, Kampol, Putita, Siriwan, Suwimon, Srisopa, Srettha, Kannika, Rattiya, Supaporn, Archawin, Patranan, Pattarawadee, and Phattarawadee