Northwestern High School

Northwestern High School may refer to:


 * Northwestern High School in Sciota, Illinois, which was consolidated into West Prairie High School
 * Northwestern High School (Indiana)
 * Northwestern High School (Baltimore, Maryland)
 * Northwestern High School (Hyattsville, Maryland)
 * Northwestern High School (Michigan)
 * Northwestern High School in Mendon, Missouri
 * Northwestern High School (Springfield, Ohio)
 * Northwestern High School (West Salem, Ohio)
 * Northwestern Senior High School (Pennsylvania)
 * Northwestern High School (South Carolina)
 * Northwestern High School (Wisconsin)