AO
| Abbreviation | Meaning | Tamil Meaning | Category |
|---|---|---|---|
| AO | Office Of The Administrator | - | Computer Acronyms(common) |
| AO | Atomic Orbital | - | Computer Acronyms(common) |
| AO | Assembly Order | - | Organizations |
| AO | Angola (FIPS 10-4 Country Code; ISO 3166 Digram) -Approach Officer (submarine) - Area Of Operations | - | Astronomy |
| AO | Arctic Oscillation | - | Business and Finance |
| AO | Announcement Of Oppurtunity | - | Business and Finance |
| AO | Abnormal Occurrence | - | Business and Finance |
| AO | Administrative Order | - | Business and Finance |
| AO | Air Overseas | - | Business and Finance |
| AO | Annotated Outline | - | Business and Finance |