The following is a list of national roads in Tanzania, under the jurisdiction of the Tanzania National Roads Agency (TANROADS).

As part of the 2007 Roads Act in Tanzania, National roads were classified into two categories, Trunk Roads and Regional Roads.

The total road network in Tanzania as of December 2022 is 181,190 km (112,590 mi), of which 36,760 km (22,840 mi) are classified as National Roads (Trunk &; Regional) and 144,429 km (89,744 mi) as District Roads (Collector, Feeder and Urban roads).

District roads are under the responsibility of the President’s Office Regional Administration and Local Government (PORALG) through Tanzania Rural and Urban Roads Agency (TARURA).

[1][2] Before 1980, Tanzania shared the same highway numbering system as Kenya, following the dissolution of the East African Community, the country renamed its roads to the A and B numbering system still available on some out dated maps.