Abbreviations beginning with o

OC-NOptical Carrier Level N (n = a number; e.g., OC-3)
Academic & Science

OC-nOptical Carrier level n
Computing » Telecom

OCNAOntario Community Newspaper Association
Business » Professional Organizations

OCNAOld Catonsville Neighborhood Association
Community » Associations

OCNAOntario Community Newspapers Association
Community » Media

OCNAOuter Comstock Neighborhood Association
Community » Associations

OCNAOvarian Cancer National Alliance
Medical » Oncology

OCNAOrthopedic Clinics of North America
Miscellaneous » Unclassified

OCNBOffice of the Chief, National Guard Bureau
Governmental » Military

OCNCOkinawa Computational Neuroscience Course (Okinawa, Japan)
Community

OCNCOak Canyon Nature Center (natural park; Anaheim, CA)
Governmental

OCNCOhlone College Newark Center (Fremont, CA)
Miscellaneous

OCNCOpera Company of North Carolina
Miscellaneous

OCNDPOhio Campaign for New Drug Policies
Miscellaneous

OCNEOregon Consortium for Nursing Education
Miscellaneous

OCNETWorkshop on Optical Communication: Networks and Technology
Academic & Science

OCNFOne-Connection Network Franchisee (global telecommunications)
Miscellaneous

OCNFBOrganised Crime Narcotics and Firearms Bureau (Trinidad and Tobago)
Governmental

OCNGSOyster Creek Nuclear Generating Station
Miscellaneous