Shichinohe Domain was a tozama feudal domain of Edo period Japan, located in Mutsu Province, Honshū. It was centered at Shichinohe Castle in what is now the modern town of Shichinohe, Aomori in the Kamikita District of Aomori Prefecture, in the Tōhoku region of far northern Japan.

Shichinohe Castle was a Japanese castle located in what is now the town of Shichinohe, in Kamikita District of Aomori Prefecture, in the Tōhoku region of far northern Japan. On December 13, 1941, the area was proclaimed a National Historic Site by the Japanese government.