NCT
- Delhi
- NCT (group)
- NCT 127
- NCT Dream
- NCT U
- NCT Wish
- Nashville Children's Theatre
- National Car Test
- National Childbirth Trust
- National Comedy Theatre
- National Curriculum assessment
- Neutron capture therapy of cancer
- New Covenant theology
- Newark Castle railway station
- Niagara College Teaching Winery
- Nicastrin
- Niue Consumption Tax
- Nobel Charitable Trust
- Nocturnal clitoral tumescence
- NokScoot
- Nonchord tone
- North Carolina Theatre
- North Country Trail
- North County Times
- Northern California TRACON
- Nottingham City Transport
- Nuclear Compton Telescope