Cognomen Труонг (Truong 
, Труонг 
, Trouong 
) , all around the world, is a widespread last name. The last name Труонг is characteristic of Vietnam, where it is quite a common surname, Macao, and Australia (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Vietnam, the United States, and Australia. Much less frequently, Труонг is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Truong | Australia, Malaysia, Canada, Vietnam, United States |
| Труонг | Ukraine, Russia |
| Trouong | United States, China |