Loudoun Valley High School is a public secondary school in Purcellville, Virginia. It is part of Loudoun County Public Schools. Before the opening of Woodgrove High School in 2010, it was the sole high school for the western half of Loudoun County.

Purcellville is a town in Loudoun County, Virginia. The population was 8,929 according to the 2020 Census. Purcellville is the major population center for Western Loudoun and the Loudoun Valley. Many of the older structures remaining in Purcellville reflect the Victorian architecture popular during the early twentieth century.