| ISNAP | Improved Secure Network Authentication Protocol 
| Others |
| ISNAP | Indiana State Nurse Assistance Program
| Others |
| ISNAP | Indiana State Nurses Assistance Program
| Others |
| ISNAP | Indiana State Nursing Assistance Program
| Others |
| ISNAP | Institute for Structure and Nuclear Astrophysics
| Others |
| ISNAP | Intelligent Services Network Application Processor
| Others |
| ISNAP | The Indiana State Nurses Assistance Program
| Others |