Family name Laongthong (Laongthong 
) , in the entire world, is a rare cognomen. The family name Laongthong is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Laongthong is the forename as well as the last name.
Panya, Jindarat, Tossapon, Nattapon, Wuttisak, Siraprapha, Banchapol, Benchapon, Piyanart, Benchapol, Juraiporn, Teerachai, Varissara, Vipaphong, Weerapong, Chonthicha, Pichayapak, Pornpipat, Panthita, Sirisuda, Wassana, Pirom, Virat, Saijai, Sutida, Adisak, Rinfun, Jutein, Yindee, Supanat, Supinya, Somchai, Srisuda, Kasistha, Ketsara, Jatanee, Natthun, Nuttiya, Thanetphon, and Watcharaporn