Ichiu (一宇村, Ichiu-son) was a village located in Mima District, Tokushima Prefecture, Japan.
As of 2003, the village had an estimated population of 1,414 and a density of 14.45 persons per km2. The total area was 97.88 km2.
On March 1, 2005, Ichiu, along with the towns of Handa and Sadamitsu (all from Mima District), was merged to create the town of Tsurugi.