| Conflict: | Siege of Hiuchi |
| Partof: | the Genpei War |
| Date: | April–May 1183 |
| Place: | Hiuchiyama, Echizen Province |
| Result: | Siege succeeds; fortress falls, but Minamoto survive and escape |
| Combatant1: | Minamoto clan |
| Combatant2: | Taira clan |
| Commander1: | Minamoto no Yoshinaka |
| Commander2: | Taira no Koremori |
was one of Minamoto no Yoshinaka's fortresses in Echizen Province, Japan. In April and May 1183, a Taira force led by Taira no Koremori attacked the fortress.[1] It was built on rocky crags, and well-defended; the Minamoto had even built a dam to create a moat. However, a traitor within the fortress tied a message to an arrow, firing it into the Taira camp, and revealing a way to breach the dam and drain the water. The castle soon fell to the Taira, but Yoshinaka and much of his forces survived and escaped.[2] [3]