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)
See also Northwest High School (disambiguation)