English abbreviations from ocd to oci
- OCD (Obsessive-Compulsive Disorder)
- O.C.D. (Ordo Carmelitarum Discalceatorum (Discalced, or Barefoot, Carmelites))
- OCDE (Ohio Commons for Digital Education)
- OCDEFT (Organized Crime Drug Enforcement Task Force)
- OCDR (Organizing Committee for the Defence of the Revolution)
- OCE (Ocean City Municipal Airport (FAA: OXB))
- OCEAN (Olin Chemical Emergency Action Network)
- OCEANCON (Control of Oceanographic Information)
- OCED (Office of Cultural Enhancement and Diversity)
- OCEM (Okeechobee County Emergency Management)
- OCET (Office of Continuing Education & Training)
- OCF (Ocala International Airport (Jim Taylor Field))
- OCFA (Ontario Cemetery Finding Aid)
- OCFI (Obsessive Compulsive Foundation, Inc.)
- 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))