The Kawasaki OH-1 is a military scout/observation helicopter developed and manufactured by the Kawasaki Aerospace Company. The primary operator is the Japan Ground Self-Defense Force (JGSDF), who originally procured the OH-1 as a domestically produced successor to their existing OH-6D Loach fleet. The OH-1 has the distinction of being the first helicopter to be entirely produced in Japan.

Kawasaki Heavy Industries Aerospace Company is the aerospace division of Kawasaki Heavy Industries (KHI). It produces aircraft, space systems, simulators, jet engines, missiles, and electronic equipment.