Other
- Nanikhir High School, a school in Gopalganj District, Bangladesh
- Nepean High School (Ottawa), Ottawa, Ontario, Canada
- New Humanitarian School, Moscow, Russia
- Northcote High School, Northcote, Melbourne, Australia
- Nashua High School (disambiguation)
- Nelson High School (disambiguation)
- Newberry High School (disambiguation)
- Newport High School (disambiguation)
- Newton High School (disambiguation)
- Newtown High School (disambiguation)
- North High School (disambiguation)
- Northeast High School (disambiguation)
- Northeastern High School (disambiguation)
- Northern High School (disambiguation)
- Northwest High School (disambiguation)
- Northwood High School (disambiguation)
- Norwalk High School (disambiguation)
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