| NTN | Narrative Television Network 
| Others |
| NTN | National Tax Number
| Others |
| NTN | National Taxation Number
| Others |
| NTN | National Tenant Network
| Others |
| NTN | National Tenant Network, Inc.
| Others |
| NTN | National Testing
| Others |
| NTN | National Testing Network
| Others |
| NTN | National Toxics Network
| Others |
| NTN | National Training Number
| Others |
| NTN | National Transition Network
| Others |
| NTN | National Trends Network
| Others |
| NTN | National Trivia Network
| Others |
| NTN | National Truck Network
| Others |
| NTN | Naturally Tasty and Nutty
| Others |
| NTN | nephrotoxic nephritis
| Others |
| NTN | Neutralized Twisted Nematic
| Others |
| NTN | Neutrino Theory Network
| Others |
| NTN | Never Trust Nanners
| Others |
| NTN | New Tech Network
| Others |
| NTN | New Technology Network
| Others |
| NTN | New Telemark Norm
| Others |
| NTN | Next to Nothing
| Others |
| NTN | No Telephone Number
| Others |
| NTN | No Thanks Needed
| Others |
| NTN | Non Tender Notices
| Others |
| NTN | Noquemanon Trail Network
| Others |
| NTN | NORA Talent Network
| Others |
| NTN | Normanton, Queensland, Australia
| Others |
| NTN | North Texas Nadadores
| Others |
| NTN | North To North
| Others |
| NTN | Number Treated Needlessly
| Others |