Professional organizations Abbreviations and Acronyms

1. OPTMQ
   Ordre Professionnel des Technologistes Medicaux du Quebec
2. ORA
   Ontario Rifle Association
3. ORCA
   Ontario Residential Care Association
4. ORCA
   The Online Racing Championship Association
5. OREA
   Ontario Real Estate Association
6. OREA
   Oregon Retired Educators Association
7. ORHA
   Ontario Residence Hall Association
8. ORR
   Office of Rail Regulation
9. ORRA
   Otago Rugby Referees Association
10. ORRA
    Orlando Regional Realtor Associations
11. ORRA
    Orraoff Road Radio Association
12. ORS
    Orthopaedic Research Society
13. ORTA
    Ohio Retired Teachers Association
14. OSCA
    Ohio State Coroners Association
15. OSCA
    Officine Specializate Costruzione Automobili
16. OSCA
    On-Site Communications Association
17. OSCC
    Ontario Society of Clinical Chemists
18. OSD
    Office for Students With Disabilities
19. OSD
    Office of Supplier Diversity
20. OSGA
    Off Shore Gaming Association

Last updated: May 23, 2020 — Total entries: 5,062