| Acronym | Definition |
|---|
| LSSD➣Lord Selkirk School Division (Canada) |
| LSSD➣Level Sensitive Scan Design |
| LSSD➣Lebanon Special School District (Tennessee) |
| LSSD➣Local Social Services District (New York) |
| LSSD➣Lake Superior Ski Division |
| LSSD➣Literary Society of San Diego |
| LSSD➣Lunar Surface Sampling Device |
| LSSD➣Large Scale System Development (computer science) |
| LSSD➣Life Safety System Division (New York Police Department; New York, NY) |