OA
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| OA | Office Of The Administrator | - | Computer Acronyms(common) |
| OA | Office Of Applications (now OSTA) | - | Organizations |
| OA | Operational Aft (DSC Or MOM) | - | Organizations |
| OA | Operational Instrumentation MDM-Aft | - | Organizations |
| OA | Orbital Assembly | - | Organizations |
| OA | Output Axis | - | Organizations |
| OA | Overall | - | Organizations |
| OA | Operational Analysis | - | Astronomy |
| OA | Office Automation | - | Business and Finance |
| OA | optical amplifier | - | Human Genome |