NAD
- Hobli
- NAD Electronics
- Na D
- Nad (surname)
- Nad, County Cork
- Namibian dollar
- National Academy of Design
- National Advertising Division
- National Appeals Division
- National Association of the Deaf (disambiguation)
- Nađ
- Nicotinamide adenine dinucleotide
- Noradrenalin
- North American Datum
- North Atlantic Drift
- Norwegian Association of the Disabled
- Nuclear organization