Londonderry High School
 Londonderry High School is a public secondary school serving grades 9 through 12 in the town of Londonderry New Hampshire. The school located on Mammoth Road (New Hampshire Route 128) is on a 135-acre (0.55 km2) parcel of land in the center of town. The main building is 232250 sq ft (21577 m2). and the separate gymnasium takes up an additional 52000 sq ft (4800 m2). The current capacity is 2100 students; 1827 are enrolled.