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
This disambiguation page lists articles associated with the title OAA.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: