Doyline is a village in southwestern Webster Parish in northwestern Louisiana, United States. The population was 841 at the 2000 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 pupils. Vandals broke windows in the abandoned structure, which contained asbestos and black mold. The building was hence razed at a cost of $99,000.
The HBO television series True Blood about vampires is filmed in Doyline.