Thạnh Trị is a district (huyện) of Sóc Trăng province in the Mekong River Delta region of Vietnam.

As of 2003 the district had a population of 86,262.

[1] The district covers an area of 281 km².

The district capital lies at Phú Lộc.

This article about a location in Sóc Trăng Province, Vietnam is a stub.