LSSO
| Acronym | Definition |
|---|---|
| LSSO | Legal Sales and Service Organization |
| LSSO | Leicestershire Schools Symphony Orchestra (youth orchestra; UK) |
| LSSO | London Schools Symphony Orchestra (London, UK) |
| LSSO | Laser System Safety Officer |
| LSSO | Logistics Systems Support Office |
| LSSO | Litton Amecon Space System Operations |