| NTPA | It is an one of the job of an employee irrigation department 
| Others |
| NTPA | Natchez Trace Parkway Association
| Others |
| NTPA | National Tractor Pullers Assocation
| Others |
| NTPA | National Tractor Pullers Association
| Others |
| NTPA | National Trade and Professional Associations
| Others |
| NTPA | National Trans Police Association (UK)
| Others |
| NTPA | New Trier Parents Association
| Others |
| NTPA | Nonmetric Temporal Path Analysis
| Others |
| NTPA | North Texas Paralegal Association
| Others |
| NTPA | North Texas Performing Arts
| Others |
| NTPA | North Texas Philosophical Association
| Others |
| NTPA | North Texas Powerstroke Association
| Others |
| NTPA | Northern Territory Police Association (Australia)
| Others |