Phú Tân is a rural district of Cà Mau province in the Mekong Delta region of Vietnam. As of 2003 the district had a population of 111,791. The district covers an area of 426 km2. The district capital lies at Cái Đôi Vàm. Phú Tân was created via government decree no. 138/2003/NĐ-CP on November 17, 2003, after being split off from Cái Nước district. Phú Tân borders Cái Nước district to the east, ocean to the west, Năm Căn district to the south and Trần Văn Thời district to the north.