The Sungusungu is a Tanzanian justice organization established by the Sukuma and Nyamwezi ethnic groups in 1981 to protect cattle and other property. The group was deputized by the Tanzanian government in 1989.

There has been some criticism of the Sungusungu as a vigilante organization that uses excessive violence as a means of punishment. Although the government prohibits the group from using guns, severe beatings of suspects (sometimes falsely accused) have been known to occur, and in some cases the suspects have died or were intentionally killed.