Doyline is a village in southwestern Webster Parish in northwestern Louisiana, United States. The population was 818 at the 2010 census. It is part of the Minden Micropolitan Statistical Area. Under a cited cost-saving realignment plan, the Webster Parish School Board closed Union Elementary School in Doyline in 2011, as Doyline High School absorbed the elementary students. Vandals broke windows in the abandoned elementary school, which contained asbestos and black mold.