| Acronym | Definition |
|---|
| OOA➣Out of Office Assistant (software: Microsoft Outlook) |
| OOA➣Object Oriented Analysis |
| OOA➣Ohio Optometric Association (Worthington, OH) |
| OOA➣Out-of-Autoclave (manufacturing) |
| OOA➣Out of Area |
| OOA➣Out of Africa |
| OOA➣Oracle of Ages (Zelda Series) |
| OOA➣Ohio Osteopathic Association |
| OOA➣Open Ocean Aquaculture |
| OOA➣Oklahoma Osteopathic Association (est. 1900) |
| OOA➣Other Operating Assets |
| OOA➣Out of Air (SCUBA diving) |
| OOA➣Office of the Americas (Los Angeles, CA, USA) |
| OOA➣Old Order Amish |
| OOA➣On Or About |
| OOA➣Order of Appearance |
| OOA➣Out of Ammo |
| OOA➣Office of Agriculture (various organizations) |
| OOA➣Ordered Orthogonal Array |
| OOA➣Out Of Area/Action |