| Abbreviation | Definition |
|---|---|
| OARA | Outer Avenue Residents' Association |
| OCRA | Off Campus Residents Association |
| OCRA | Old Coulsdon Residents Association |
| OERF | Observatory Estate Resident Forum |
| OHRA | Options for Helping Residents of Ashland |
| OHRA | Options for Homeless Residents of Ashland |
| OLR | On Line Residential |
| OMRF | Organization of Minority Residents and Fellows |
| OPE | Outdoor Power Equipment |
| ORCC | Office of Residential Child Care |
| OREP | Office Of Residential And Electronic Programs |
| ORH | Organization of Residential Homes |
| ORL | Office of Residential Life |
| ORP | Oconomowoc Residential Programs |
| ORR | Organization of Resident Representatives |
| PAIRS | Professional Association of Internes and Residents of Saskatchewan |
| PARA | Parent Assisted Residential Accommodation |
| PASRR | Pre Admission Screening and Resident Review |
| PASRR | Pre Admission Screening Resident Reviews |
| PEARL | Programs Enriching Active Resident Living |