| Acronym | Definition |
|---|
| NPTA | National Pharmacy Technician Association (Houston, TX) |
| NPTA | National Pest Technicians Association (Nottingham, UK) |
| NPTA | Net Profit/Total Assets (finance) |
| NPTA | Norwegian Post and Telecommunications Authority (Norwegian Ministry of Transport and Communications) |
| NPTA | National Parent Teacher Association |
| NPTA | National Paper Trade Association, Inc. |
| NPTA | National Progressive Taekwondo Association (Springfield, MO) |
| NPTA | National Post and Telecom Agency (Sweden) |
| NPTA | National Police and Trooper Association |
| NPTA | National Postal Transport Association |
| NPTA | National Property Taxpayers Association |