| Rank | Abbreviation | Meaning |
|---|
| ***** | LSSS | Liverpool Seizure Severity Scale
| |
| **** | LSSS | Linear Secret Sharing Scheme
| |
| **** | LSSS | Lightweight Ship Satcom Set (an/wsc-6)
| |
| *** | LSSS | Large Simple Safety Study
| |
| *** | LSSS | Lean Six Sigma Sensei
| |
| ** | LSSS | Large Scale Survey System
| |
| * | LSSS | Large Scale Sensing Surface
| |
| * | LSSS | Lutheran Social Services of the South
| |
| * | LSSS | Lightweight SHF SATCOM Set
| |
| * | LSSS | Lunar: Silver Star Story
| |
| * | LSSS | Law of the Sea Seminar Series
| |
| * | LSSS | Legal Services Staff Section
| |
| * | LSSS | Life Support Subsystem
| |
| * | LSSS | Local Stop Smoking Services
| |
| * | LSSS | Large scale scientific system
| |
| * | LSSS | Lone Star Steakhouse and Saloon
| |
| * | LSSS | Lord Swaminarayan Shree Swaminar
| |
| * | LSSS | Land Surface Schemes
| |
| * | LSSS | ls1 super street slick
| |
| * | LSSS | Lunar Soil Strangelet Search
| |
| * | LSSS | Limiting Safety System Setting
| |
| * | LSSS | Legal Services Support Section
| |
| * | LSSS | Law School Student Senate
| |
| * | LSSS | La Sagra Sky Survey
| |
| * | LSSS | Lee's Summit Social Services
| |