| NSPA | National Scholarship Providers Association 
| Others |
| NSPA | National Scholastic Press Association
| Others |
| NSPA | National Sled Pullers Association
| Others |
| NSPA | National Sports Performance Association
| Others |
| NSPA | National Standard Parts Associates
| Others |
| NSPA | National State Practice Act
| Others |
| NSPA | National Streets for Performing Arts
| Others |
| NSPA | National Strength Professionals Association
| Others |
| NSPA | National Strength Professionals Association's
| Others |
| NSPA | NATO Support Agency
| Others |
| NSPA | NATO Support and Procurement Agency
| Others |
| NSPA | Near Southwest Preparedness Alliance
| Others |
| NSPA | Nebraska School Psychologists Association
| Others |
| NSPA | Neisserial Surface Protein A
| Others |
| NSPA | Neuronal Surface P Antigen
| Others |
| NSPA | Northern Sparsely Populated Areas
| Others |