English abbreviations from ocfs to ocma
- OCFS(Oracle Cluster File System)
- OCFS [1](Office of Children & Family Services)
- OCFS2(Oracle Cluster File System Release 2)
- OCG(Outdoor Classroom Garden)
- O.C.G.A.(Official Code of Georgia Annotated)
- OCH(A. L. Mangham Jr. Regional Airport)
- OCHA(Office For The Coordination of Humanitarian Affairs)
- OCHR(Office of Civilian Human Resources)
- OCHSG(Oakdale Christian Homeschool Support Group)
- oci(Occitan language (ISO 639-2 code))
- OCID(Online Chemical Inventory Database)
- OCIDS(Optical Combat Identification System)
- OCIE(Organizational Clothing and Individual Equipment)
- OCIMF(Oil Companies International Marine Forum)
- OCIR(Operational Capability Improvement Request)
- O. Cist.(Ordo Cisterciensium (Cistercians))
- OCJ(Boscobel Aerodrome)
- OCJCS(Office of The Chairman of The Joint Chiefs of Staff)
- OCJCS-PA(Office of The Chairman of The Joint Chiefs of Staff-Public Affairs)
- OCL(Quality Control Log)
- OCLC(Online Computer Library Center)
- OCLL(Office of the Chief of Legislative Liaison)
- OCLV(Optimum Compaction Low Void)
- OCM(Outline Of Cultural Materials)
- OCMA(Ohio Coin Machine Association)
