Thạnh Phú is a rural district of Bến Tre province in the Mekong Delta region of Vietnam.

The district capital lies at Thạnh Phú.

To the north is the Hàm Luông River and Ba Tri district, to the south is the Chiên River and Trà Vinh province, to the west is Mỏ Cày district and to the east is the South China Sea.

The district capital is on National Highway 57 and is around 45 km southeast of Bến Tre.

This article about a location in Bến Tre Province, Vietnam is a stub.