Abbreviations beginning with o

OCNOOffice of the Chief Nursing Officer (Department of Health; Western Australia; Australia)
Governmental

OCNOOffice of the Chief of Naval Operations (US Navy)
Governmental

OCNOOblastné Centrum Námestovo (Slovak: Námestovo Regional Center; Námestovo, Slovakia)
Miscellaneous

OCNOOlde Cotswold Neighborhood Organization (Charlotte, NC)
Miscellaneous

OCNPOakland Community Networking Project (University of California, Berkeley)
Community

OCNPPOpnet Certified Network Planning Professional (Opnet Technologies, Inc.)
Miscellaneous

OCNROffice of the Chief of the Navy Reserve
Academic & Science

OCNROffice of the Chief of Naval Research
Governmental

OCNSOceans, large body of water which covers most of the Earth, see sea.
Academic & Science » Ocean Science

OCNSOffice for Civil Nuclear Security
Academic & Science » Nuclear

OCNSOffsetters Climate Neutral Society
Academic & Science » Societies

OCNSOffsetters Climate Neutral Society (Canada)
Academic & Science

OCNSOffshore Chemical Notification Scheme
Academic & Science » Chemistry

OCNSOrthogonal Channel Noise Simulator (aka Orthogonal Channel Noise Simulation)
Academic & Science

OCNSOffshore Chemical Notification Scheme (UK)
Community

OCNSOffice for Civil Nuclear Security (UK)
Governmental

OCNSOsgoode Cooperative Nursery School
Medical » Nursing

OCNSODOCS Common Naming Service
Miscellaneous » Unclassified

OCNSOffice for Civil Nuclear Security
Miscellaneous » Unclassified

OCNSOffsetters Climate Neutral Society
Miscellaneous » Unclassified