Osbourn Park Senior High School is a Prince William County, Virginia public high school in a small county island between the cities of Manassas and Manassas Park. Osbourn Park serves the mid-part of the county. The community consists of business, professional, U.S. Government and military residents. Osbourn Park has also been designated as The Biotechnology Center and houses two other unique programs: Allied Health and NJROTC. It has at various times had a student population ranging from 1900 to 2500, but it is currently around 9000 grades 9-12.