| OLR | Off Line mail Reader 
| Others |
| OLR | Off Line Reader
| Others |
| OLR | Office of Labor Relations
| Others |
| OLR | Office of Lawyer Regulation
| Others |
| OLR | Office of Learning Resources
| Others |
| OLR | Office of Legislative Research
| Others |
| OLR | Office of Licensing and Registration
| Others |
| OLR | Office of Licensing and Regulation
| Others |
| OLR | Ohioans for Landfill Reform
| Others |
| OLR | On Line Reference
| Others |
| OLR | On Line Registration
| Others |
| OLR | On Line Replacement
| Others |
| OLR | On Line Reporting
| Others |
| OLR | On Line Residential
| Others |
| OLR | On Line Resources
| Others |
| OLR | On Line Routing
| Others |
| OLR | On- Line Resource
| Others |
| OLR | On-Line Learning Record
| Others |
| OLR | On-Line Racing
| Others |
| OLR | On-Line Registry
| Others |
| OLR | On-Line Residential
| Others |
| OLR | One Lane Road
| Others |
| OLR | Online Labor Redistribution
| Others |
| OLR | Online Learning Readiness
| Others |
| OLR | Online License Renewal
| Others |
| OLR | Online Logistic Regression
| Others |
| OLR | OnlineRock Music Store
| Others |
| OLR | Ontario Law Reports
| Others |
| OLR | Optical Line Repeater
| Others |
| OLR | Optimal Level Route
| Others |
| OLR | Oracle Local Registry
| Others |
| OLR | Orange Lounge Radio
| Others |
| OLR | Oregon Law Review
| Others |
| OLR | Organic Loading Rate
| Others |
| OLR | Organizational Leadership Review
| Others |
| OLR | Oriental Language Recognition
| Others |
| OLR | Our Lady of Refuge
| Others |
| OLR | Our Lady of the Rosary
| Others |
| OLR | Our Lady of the Rosary College
| Others |
| OLR | out-going long radiation
| Others |
| OLR | outer Lindblad resonance
| Others |
| OLR | Outgoing Longwave Radiation
| Others |
| OLR | Outstanding Loss Reserve
| Others |
| OLR | Oxford Lafayette Realty
| Others |