Bakke is a former municipality in Vest-Agder county, Norway. The 244-square-kilometre (94 sq mi) municipality existed from 1838 until its dissolution in 1965. It was located in the present-day municipalities of Sirdal and Flekkefjord. It included the whole valley along the Rogaland county border, stretching from the Aust-Agder county border in the north to Sirnes and the lake Lundevatnet in the south. The administrative center was the village of Sira where Bakke Church is located.