| Rank | Abbreviation | Meaning |
|---|
| ***** | OCSL | Open College of Sign Language
| |
| ***** | OCSL | Office of Community Service Learning
| |
| ***** | OCSL | Open Code Software Library
| |
| ***** | OCSL | Open College of South London
| |
| **** | OCSL | Ottawa Conventional Softball League
| |
| **** | OCSL | Optichrome Computer Solutions Ltd
| |
| **** | OCSL | Old Capitol Soccer League
| |
| **** | OCSL | Opportunity cost of surplus labor
| |
| **** | OCSL | Ottawa Carleton Soccer League
| |
| **** | OCSL | Office of the Chief Staff List
| |
| *** | OCSL | Office of Community Services Liaison
| |
| *** | OCSL | Orange County Speech League
| |
| ** | OCSL | Orange County Spring League
| |
| ** | OCSL | Optichrome Computer Systems Limited
| |
| * | OCSL | Olympic Center Staff Library (Bremerton, WA)
| |