Cognomen Phan Thi (Phan Thi 
) , around the globe, is a rare last name. The surname Phan Thi is habitual in South-eastern Asia, particularly Vietnam, where it is a rare surname, Malaysia, where it is a very rare surname, and Thailand. More frequently, Phan Thi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phan Thi | Canada, Vietnam, Germany, Malaysia, Thailand |