Tsugaru (津軽) is the northwestern peninsula of Aomori prefecture, at the northern tip of the Japanese main island of Honshu.
- Cape Tappi (Tappizaki) — the northernmost point of the peninsula
Traditionally one of the poorest and remotest areas of Japan, Tsugaru is best known as the birthplace of writer Osamu Dazai, who wrote the mordant travelogue Return to Tsugaru (ISBN 0870118412) about his travels around the peninsula, and for the Tsugaru-jamisen, a distinctive local version of the Japanese string instrument shamisen.
Tsugaru is separated from Hokkaido by the Tsugaru Strait. There are trains from Aomori through Tsugaru and across via the Seikan Tunnel to Hakodate.