CLLS
| Acronym | Definition |
|---|---|
| CLLS | City of London Law Society |
| CLLS | Canadian Lakes Loon Survey (research program; Canada) |
| CLLS | Captains Lighthouse Logistical Services (Whitney TX) |
| CLLS | Closed Loop Life Support |
| CLLS | Centre for Language and Linguistic Studies |
| CLLS | Captains Lighthouse and Lighthouse Services (Missouri City, TX) |
| CLLS | Cells of Limited Life Span (gastrointestinal cancer) |