Cognomen Thongkhanh (Thongkhanh 
) , worldwide, is a very rare last name. The surname Thongkhanh is characteristic of Malaysia, where it is a very rare surname, France, where it is an extremely rare surname, and the United States. Much more frequently, Thongkhanh is the forename as well as the last name.
Korath, Lewandowski, Phommachith, Phandanouvong, Souvannanath, Thammavong, Phommasith, Chanthilath, Vilaysane, Thetchamphone, Phuksahome, Bouakhasith, Chanthala, Sisourath, Sisoukrath, Pathammavong, Hongvilay, Jokbengboon, Luangraj, Rajsombath, Keobandith, Soumaphanh, Siharath, Sanasith, Cerland, Soucannavong, Sisavat, Malasou, Xomvimane, Lapthi, Khemdy, Nonarath, and Thammavongsa