Surname Phuong Thao (Phuong Thao 
) , around the globe, is a rare last name. The family name Phuong Thao is habitual in South-eastern Asia, particularly Vietnam, where it is a rare surname, Singapore, and Malaysia, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in South-eastern Asia, particularly Vietnam, Indonesia, and Malaysia. Likewise, Phuong Thao is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phuong Thao | Vietnam, United States, Indonesia, Japan, Malaysia |