Nachingwea is a district in the Lindi Region of Tanzania. The district is bordered to the north by the Ruangwa District, to the east by the Lind…Nachingwea is a district in the Lindi Region of Tanzania. The district is bordered to the north by the Ruangwa District, to the east by the Lindi Rural District, to the south-east by the Mtwara Region, and to the south-west by the Ruvuma Region.