NHHS
| Acronym | Definition |
|---|---|
| NHHS | Newport Harbor High School (Newport Beach, CA) |
| NHHS | North Hollywood High School (Los Angeles, CA) |
| NHHS | Nebraska Health & Human Services |
| NHHS | New Hanover High School (Wilmington, NC) |
| NHHS | North Hunterdon High School (New Jeresy) |
| NHHS | New Hampshire Historical Society |
| NHHS | North Haven High School |
| NHHS | New Haven High School (Indiana) |
| NHHS | Nathan Hale High School (Washington) |
| NHHS | North Hills High School (Pittsburgh, PA) |