Cognomen Luangthep (Luangthep 
) , in all the world, is a rare last name. The surname Luangthep is characteristic of Thailand, where it is a rare surname, the United States, where it is an extremely rare surname, and the United Kingdom.
Jait, Nuttaporn, Soupharack, Folksong, Tosaporn, Jiraporn, Jakrapat, Plaichat, Phornruthai, Phichest, Panithan, Patiparn, Kunlatida, Kanuttawut, Sourisack, Wallaya, Wanlaya, Norasack, Tidarat, Thonglo, Ruethai, Phichet, Pichest, Kraiwut, Sumalee, Sariddi, Titaya, Joanna, Anucha, Sirin, Thanousinh, and Narathaphong