| Acronym | Definition |
|---|
| IPSP➣Inhibitory Postsynaptic Potential |
| IPSP➣Internet Payment Service Provider |
| IPSP➣Injury Prevention and Safety Promotion |
| IPSP➣Institute for Public Safety Partnerships (Chicago, IL) |
| IPSP➣Internet Protocol Security Protocol |
| IPSP➣Instituto de Previsión Social del Periodista (Guatemala) |
| IPSP➣International Parliament for Safety and Peace |
| IPSP➣Intelligence Priorities for Strategic Planning |
| IPSP➣Internet Protocol Security Policy (IETF) |