Sadamitsu, Tokushima
（重定向自Sadamitsu）
Sadamitsu(貞光町Sadamitsu-chō) was a town located in Mima District, Tokushima Prefecture, Japan.
As of 2003, the town had an estimated population of 5,718 and a density of 125.95 persons per km². The total area was 45.40 km².
On March 1, 2005, Sadamitsu, along with the town of Handa, and the village of Ichiu (all from Mima District), was merged to create the town of Tsurugi.