Highline Public Schools (HPS) is a public school district in King County, headquartered in Burien, Washington. As of October 2007, it served 17,331 students and had 997 teachers, and served the cities of Burien, much of Des Moines, Normandy Park, and SeaTac as well as adjacent unincorporated census-designated places proximal to Burien in King County such as White Center and much of Boulevard Park. Portions of Kent and Tukwila and a very small portion of Seattle are in the district limits.

King County is located in the U.S. state of Washington. The population was 2,269,675 in the 2020 census, making it the most populous county in Washington, and the 12th-most populous in the United States. The county seat is Seattle, also the state's most populous city.