OAA
# OAA

OAA may refer to:

* Oakwood Adventist Academy
* Oceania Athletic Association
* Office of the Administrative Assistant to the Secretary of the Army
* Ohio Auctioneers Association
* Ohio Achievement Assessment
* Old Achimotans Association
* The Older Americans Act of 1965
* Oman Automobile Association, a member of the FIA
* Ontario Association of Architects
* Open Adoption Agreement
* Open Agent Architecture
* Open Automotive Alliance, an organization to computerize cars
* Optically active additive, for use in paints and coatings
* Opticians Association of America
* Optometrists Association Australia
* Oriental Astronomical Association
* Orlando Apopka Airport
* Oxaloacetic acid
* Oxford Aviation Academy
* Oxley Aviation, Australia (ICAO operator designator)
* Ozark Adventist Academy
