| Acronym | Definition |
|---|
| LPSS➣Lorne Park Secondary School (Ontario, Canada) |
| LPSS➣Lafayette Parish School System (Louisiana) |
| LPSS➣Lucent Public Safety Systems |
| LPSS➣Low-Pressure Sewer Systems |
| LPSS➣Law, Public Safety and Security |
| LPSS➣Long-Pulse Spallation Source |
| LPSS➣Amphibious Transport Submarine |