OMSG

AcronymDefinition
OMSGOh My! Sorry, Gas
OMSGOverseas Military Sales Group
OMSGOfficine Meccaniche San Giorgio (Italian: Machine Shop San Giorgio)
OMSGOfficer Midshipman Study Guide (US Navy)
OMSGOttawa Medieval Sword Guild (est. 2001; Ottawa, Ontario, Canada)
OMSGOnline Media Sales Group (Germany)
OMSGOffice of the Massachusetts State Geologist (est. 2002; University of Massachusetts; Amherst, MA)
OMSGOxford Medical School Gazette (Oxford, England, UK)
OMSGOh My Stars and Garters