Phú Tân is a rural district (huyện) of An Giang province in the Mekong Delta region of Vietnam.

[2] Phú Tân is the homeland of the Hòa Hảo Buddhism religion.

The terrain is flat and the elevation is between 1 and 2 m. The population is mainly ethnic Vietnamese (98%) with Khmer people, some Cham and Hoa Chinese.

All four sides of Phú Tân are surrounded by waterways and rivers, effectively making it an island.

The district is the site of some historical and cultural Cham artefacts and is a bastion of the Hòa Hảo.