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.
Ichiu is dominated by steep and relatively tall mountains. The town is situated on the upper part of the Sadamitsu River.
Ichiu has one junior high school, and one elementary school, Komi Elementary. Due to lack of students, Ichiu Junior High School closed in spring 2010.
Japanese National Route 438 is the main road in Ichiu. Ichiu is served by local buses.