Surname Phan Thi Thu (Phan Thi Thu 
) , globally, is a very rare cognomen. The cognomen Phan Thi Thu is characteristic of South-eastern Asia, particularly Vietnam, where it is a very rare surname. Likewise, Phan Thi Thu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phan Thi Thu | Vietnam |