NNR may refer to:
- National nature reserve, an area protected by a nation to preserve wildlife etc.
- Nishi-Nippon Railroad, a railway company in Japan
- North Norfolk Railway, a heritage railway in England
- Naturally Nutrient Rich, a rating system for the nutritional content of food
- National Nuclear Regulator of South Africa
- Connemara Airport, Ireland (IATA code: NNR)
This disambiguation page lists articles associated with the title NNR.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: