Surname Thi Nga (Thi Nga 
) , all over the world, is a rare last name. The last name Thi Nga is habitual in Vietnam, where it is a rare surname, Singapore, and Australia, where it is a very rare surname. Likewise, Thi Nga is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thi Nga | Canada, Australia, Vietnam, New Zealand, Singapore |