Matendo is an administrative ward in Kigoma District of Kigoma Region in Tanzania. The ward covers an area of , and has an average elevation of . In 2016, according to the Tanzania National Bureau of Statistics report, there were 14,306 people in the ward, from 22,458 in 2012. Prior to 2014 Kidahwe Ward was a village in the Matendo Ward before splitting off to form its won new ward.
The ward has 3 villages and 12 hamlets.