Borsedth District (Khmer: ស្រុកបរសេដ្ឋ) is a district (srok) in the south of Kampong Speu Province, in southern Cambodia. The district capital is Borsedth town located some 50 kilometres south of the provincial capital of Kampong Speu by road. The district shares a border with Kampot and Takeo provinces to the south.National Highway 3 forms the eastern district boundary.