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What does OAO stand for?

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Rank Abbr.Meaning
OAOOffice of Advocacy and Outreach (USDA)
OAOOffice of Administrative Operations (US DOC)
OAOOwned and Operated
OAOOrbiting Astronomical Observatory
OAOOver and Out
OAOOnline Account Opening (digital banking)
OAOOne And Only
OaOOverall Opinion (marketing)
OAOOntario Association of Orthodontists
OAOOntario Association of Optometrists
OAOOpticians Association of Ohio
OAOOregon Academy of Ophthalmology
OAOOrthogonalized Atomic Orbital
OAOOffice of Appellate Operations (US Social Security Administration)
OAOOtkrytoe Aktsionernoe Obschestvo (Russian: Open Joint Stock Corporation)
OAOOne Among Others
OAOOrbital Analysis Officer
OAOOther Authorised Operator (telecommunications)
OAOObjective Area Officer

Note: We have 21 other definitions for OAO in our Acronym Attic