| NTSC | Nation Television System Committee 
| Others |
| NTSC | National Team Selling Competition
| Others |
| NTSC | National Technology Security Coalition
| Others |
| NTSC | National Television Standards Committee
| Others |
| NTSC | National Television Standards Convention
| Others |
| NTSC | National Television System Committee
| Others |
| NTSC | National Television Systems Commission
| Others |
| NTSC | National Television Systems Committee
| Others |
| NTSC | National Thai Studies Centre
| Others |
| NTSC | National Time Service Center
| Others |
| NTSC | National Traffic System Coordinator
| Others |
| NTSC | National Transportation Systems Center
| Others |
| NTSC | Naval Training Systems Command
| Others |
| NTSC | Never The Same Color
| Others |
| NTSC | Never Twice the Same Color
| Others |
| NTSC | Never Twice the Same Colour
| Others |
| NTSC | New Trier Swim Club
| Others |
| NTSC | Next Time Shimmer Champion
| Others |
| NTSC | Non Tilt Steering Column
| Others |
| NTSC | Nordic Toyota Sportscar Club
| Others |
| NTSC | North Toronto Ski Club
| Others |
| NTSC | North Toronto Soccer Club
| Others |
| NTSC | Northern Territory Seafood Council
| Others |
| NTSC | Northern Triad Soccer Club
| Others |
| NTSC | Not Terribly Sensible Category
| Others |
| NTSC | Not The Same Colors
| Others |
| NTSC | Not The Sharpest Colors
| Others |
| NTSC | Notice To Show Cause
| Others |