- A2A stands for Access to Archives (UK)
- A2A stands for Account-to-Account (banking)
- A2A stands for Administration-to-Administration
- A2A stands for Airline to Airline
- A2A stands for Air-To-Air (weapon)
- A2A stands for Application to Application
- A2A stands for Ashes to Ashes (TV series)
- A2A stands for Ask to Answer
- A2A stands for Athens-to-Atlanta (in-line skating event; Georgia)
Abbreviations And Their Meaning