| Abbreviation | Definition |
|---|---|
| OLCMS | Online Legal Caseload Management System |
| OLCMS | Online Legal Cases Monitoring System |
| OLEG | Ohio Law Enforcement Gateway |
| OLEO | Office of Law Enforcement Oversight |
| OLEP | Office of Law Enforcement Policy |
| OLF | Oregon Law Foundation (Tigard, OR) |
| OLG | Office of Law Guardian |
| OLN | Oldham, Li Nie |
| OLP | Organization of Legal Professionals |
| OLPA | Omaha Legal Professionals Association |
| OLPC | Ohio Law Placement Consortium |
| OLR | Office of Lawyer Regulation |
| OLR | Ontario Law Reports |
| OLRC | Office of the Law Revision Counsel |
| OLS | Office of Legal Services |
| OLSP | Oberlin Law Scholars Program |
| OLTI | OnLine Training Institute |
| OM | Other Male |
| OMB | Only My Brothers - Oroville Mono Boys |
| OMC | Operation Machina Counterfeit |