Cajaruro is a district in the Amazonas region of northern Peru. It is one of seven districts that make up Utcubamba Province, the others being Utcubamba's other constituent districts within the same provincial structure. The district seat is the town of Cajaruro.
The district lies in the Utcubamba river valley, an area of the Peruvian Amazonas region known for its warm climate and agricultural land. As a district-level administrative unit, Cajaruro functions as a local government jurisdiction below the provincial level, alongside its fellow districts in Utcubamba Province.
Cajaruro is distinct from other places bearing similar names and should not be confused with them; its identity is tied specifically to Utcubamba Province in Amazonas, Peru.