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What does OSA stand for?

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Rank Abbr.Meaning
OSAObstructive Sleep Apnea
OSAOptical Society of America
OSAOffice of the State Auditor
OSAOffice of Student Affairs
OSAOffice of Special Affairs (Church of Scientology International)
OSAOffice of Substance Abuse
OSAOptical Spectrum Analyzer
OSAOutside Air
OSAOfficial Secrets Act
OSAOpen Systems Architecture
OSAOpen Society Archives (Budapest, Hungary)
OSAOverseas Subscribers Agents (lottery agent)
OSAOffice of Student Achievement (various locations)
OSAOpen Service Access (3GPP)
OSAOperational Support Airlift (US DoD)
OSAOpen Service Architecture
OSAOrganizzazione degli Stati Americani
OSAOutstanding Service Award
OSAOffice of the Secretary of the Army
OSAOperational Support Aircraft
OSAOrdo Sancti Augustini (St Augustine Order)
OSAOrder of Saint Augustine
OSAOpen Software Associates
OSAOverseas Students' Association (University of Adelaide, Australia)
OSAOptical Subassemblies (Palomar Technologies)
OSAOld Stone Age (gaming forums)
OSAOptimal Shelf Availability
OSAOrganization of Staff Analysts (New York, NY)
OSAOrganización Sionista Argentina
OSAOpportunistic Spectrum Access
OSAOberstabsarzt (German military)
OSAOm Svar Anhålles
OSAOrder of St Anne
OSAOscilloquartz SA (Switzerland)
OSAOur Special Ale (Anchor Christmas Ale)
OSAOnline Sexual Activity
OSAOrganizations and Strategies in Astronomy
OSAObject Services Architecture
OSAOtto Schulze Autometer
OSAOpen Security Architecture (Nortel)
OSAOrchid Society of Arizona (Phoenix, AZ)
OSAOrdinis Sancti Augustini (of the order of St Augustine)
OSAOpen Solutions Architecture (Novell)
OSAOpen Space Assessment
OSAOld Stock Ale (North Coast Brewery)
OSAOregon Society of Anesthesiologists
OSAOpus Sanctorum Angelorum (Latin: Work of the Holy Angels; religious order)
OSAOregon Soccer Association (Oregon, WI)
OSAOffice of Space Acquisition
OSAOffice of the Space Architect
OSAOperational Support Authority
OSAOlympic Science Alliance
OSAOlentangy Swim Association (Powell, OH)
OSAOffice Solution Accelerator (Microsoft)
OSAOffice of Safety Appraisals
OSAOrbiter-based Station Avionics
OSAOut of Station Allowance
OSAOutfitting Supply Activity
OSAOutfitting Support Activity
OSAOperational Safety Analysis/Assessment
OSAOperating System Account
OSAObjective Switching Architecture
OSAOcala Sportsman's Association, Inc (Florida, USA)
OSAHermits of St. Augustine, Augustinians (religious order)
OSAOptic Stabilizer Assembly
OSAOPLAN Supportability Analysis
OSAobservability subspace algorithm
OSAOntology Server for Archaeological Information Retrieval and Processing
OSAOn-Screen Analysis
OSAOwatonna Soccer Association (Minnesota)
OSAOfficially Step Aside
OSAOrganización de Seguros Africanos (Spanish: African Insurance Organization)
OSAOnline Selling Association (Hutchinson, KS)
OSAOnline Savings Account
OSAOn Shelf Availability (of products in a store)
OSAOld Scholars' Association (various organizations)
OSAOakland School for the Arts (California)
OSAOffice of Services to the Aging (Michigan)
OSAOffice of Student Activities (various schools)
OSAOregon Student Association (est. 1975)
OSAOperation Save America (aka Operation Rescue; anti-abortion group)
OSAOperacion San Andres (Peruvian operation)
OSAOperational Staging Area (various organizations)
OSAOperations Support Assignment
OSAOpen Source Academy (various locations)
OSAOpen Solutions Alliance (vendor consortium)
OSAOxford Spires Academy (UK)
OSAOsteosarcoma (tumors)

Note: We have 250 other definitions for OSA in our Acronym Attic

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