- Natural gas
- Natural gas utilities
- Newborn screening see Childbirth—genetic screening of newborns
- Noise pollution
- noise guidelines
- MacLeod, JP1228
- noise guidelines
- Non-profit Housing Co-operatives Statute Law Amendment Act, 2013 (Bill 14)
- Non-profit organizations
- funding
- Dickson, F571
- funding
- Non-profit supportive housing see Senior citizens—housing
- Northern Ontario see also Air ambulance services; Coal-fired generating stations; Economic development; Energy rebates; Highways in northern Ontario; Infrastructure; Job creation; Ministry of Natural Resources; Railways; Traffic congestion; Transportation; Water and sewer infrastructure
- Northern Services Boards Act, R.S.O. 1990, c. L.28
- Harris, T131
- Nuclear energy
- Yakabuski, JP1314–JP1315
- economic review
- Singh, JP1259
- reduction
- Nuclear generating stations
- Nurses see also Community care access centres (CCACs) staffing—nurses
- Nutrition see also Children's nutrition programs; Infant nutrition
- Matthews, E210