Last name Тхонг (Thong 
, Thông 
, Тхонг 
) , in all the world, is a common surname. The family name Тхонг is habitual in South-eastern Asia, particularly Malaysia, where it is quite a common surname, Singapore, and Laos. In absolute terms, it most frequently occurs in South-eastern Asia, particularly Malaysia, Vietnam, and Indonesia. Also, Тхонг is the forename as well as the last name.