- Nail salon
- Night club
- Non-profit organization
- Nursing school
- Nursing association
- National library
- Nursing agency
- Neurologist
- National museum
- Non-governmental organization
- Nursing home
- Naturopathic practitioner
- Neurosurgeon
- Nephrologist
- Neurophysiologist
- National park
- National forest
- Nature preserve
- Natural history museum
- Newspaper publisher