Kadoto is a Ward (kata in Swahili) within the Maswa District in Simiyu Region, Tanzania.

It is located northwest of Buchambi, north of Isanga, east/northeast of Kulimi, east/southeast of Shishiyu and southwest of Kinang`weli, Itilima District.

According to the 2012 census, the Ward had a population of 11,916 residents (5,771 males and 6,145 females).

The R362 runs through the ward from west to east, connecting Malya Airport with the T36 and the regional capital Bariadi.

An important bridge over the Simiyu River is part of the R362, located at the border between Kadoto and the Kingang`weli ward.