A2A
| Acronym | Definition |
|---|---|
| A2A | Access to Archives (UK) |
| A2A | Application to Application |
| A2A | Ashes to Ashes (TV series) |
| A2A | Account-to-Account (banking) |
| A2A | Ask to Answer |
| A2A | Any to Any |
| A2A | Administration to Administration |
| A2A | Athens-to-Atlanta (in-line skating event; Georgia) |
| A2A | Air-To-Air (weapon) |
| A2A | Administration-to-Administration |
| A2A | Airline to Airline |