Abbreviations beginning with O

OMSFOctober Mountain State Forest (Massachusetts)
Governmental

OMSFOffice of Manned Space Flight
Governmental » NASA

OMSFOffice of Manned Space Flight (now OSTS)
Governmental » NASA

OMSFOral and Maxillofacial Surgery Foundation
Medical » Surgical

OMSFOperations Maintenance and Storage Facility
Miscellaneous » Unclassified

OMSFOral and Maxillofacial Surgery Foundation
Miscellaneous » Foundations

OMSFOver My Shoulder Foundation
Miscellaneous » Foundations

OMSGOffice of the Massachusetts State Geologist (est. 2002; University of Massachusetts; Amherst, MA)
Academic & Science

OMSGOfficine Meccaniche San Giorgio (Italian: Machine Shop San Giorgio)
Business

OMSGOnline Media Sales Group (Germany)
Business

OMSGOrbital Marketing Services Group
Business » Marketing

OMSGOverseas Military Sales Group
Business

OMSGOxford Medical School Gazette
Community » Schools

OMSGOxford Medical School Gazette
Medical

OMSGOfficer Midshipman Study Guide
Miscellaneous » Unclassified

OMSGOh My! Sorry, Gas
Miscellaneous

OMSGOttawa Medieval Sword Guild (est. 2001; Ottawa, Ontario, Canada)
Miscellaneous

OMSGOxford Medical School Gazette (Oxford, England, UK)
Miscellaneous

OMSHOgden Martin Systems of Haverhill, Inc. (Haverhill, MA)
Business