The Oak Ridge Seminary (Oak Ridge Female Seminary, Oak-Ridge Academy) was an antebellum school for "young ladies" west of the borough of Gettysburg, Pennsylvania. One of 2 girls schools used as an for Battle of Gettysburg casualties, the female seminary had also been used as a prison, and General Lee's "Headquarters and tents [were] pitched in the space adjoining Oak Ridge Seminary" (a field was "on the east side of Miss Carrie Sheads' School".)