Manger is a former municipality in the old Hordaland county, Norway. The municipality existed from 1838 until its dissolution in 1964. It was located in what is now Alver Municipality in Vestland county. Upon its dissolution in 1964, Manger encompassed 34 square kilometres (13 sq mi). The municipality originally included almost all of the island of Radøy, the northern part of the island of Holsnøy, and all the islands of northern Øygarden. Over time, the municipality was reduced in size several times, so that by 1964, it was just the central part of Radøy island. The administrative centre was the village of Manger where Manger Church is located.