| Rank | Abbreviation | Meaning |
|---|
| ***** | OLSC | Official Leinster Supporters Club
| |
| ***** | OLSC | Override, Limit & Status Check
| |
| ***** | OLSC | Office of the Legal Services Commissioner
| |
| **** | OLSC | Official Liverpool Supporters Club
| |
| **** | OLSC | Office of Legal Services Coordination
| |
| **** | OLSC | Open Lake Sporting Club
| |
| *** | OLSC | Online Learning Student Community
| |
| *** | OLSC | Ottawa Life Sciences Council
| |
| ** | OLSC | Oceanside Longboard Surfing Club
| |
| ** | OLSC | Ontario Library Services Centre
| |
| ** | OLSC | Opportunities For Learning-santa Clarita
| |
| ** | OLSC | Office of Laboratory Safety and Compliance
| |
| ** | OLSC | Optional Loss Settlement Clause
| |
| ** | OLSC | Oklahoma Legal Services Center
| |
| ** | OLSC | Online Learning Support Center
| |
| * | OLSC | Of Laboratory Safety and Compliance
| |
| * | OLSC | On-Line Services Committee
| |
| * | OLSC | Open Library Systems Center
| |
| * | OLSC | Old Line Skiffle Combo
| |
| * | OLSC | Odessa Language Study Center
| |
| * | OLSC | Oswego Laker Swim Club
| |
| * | OLSC | Our Lady of the Southern Cross
| |
| * | OLSC | On-Line Scientific Computer
| |
| * | OLSC | Odessa Language Study Centre
| |