- A2 stands for Advanced Level 2 (UK educational qualification)
- A2 stands for Alpha 2 (Street Fighter: Alpha 2 game)
- A2 stands for Aluminized Type 2 Steel
- A2
- A2 stands for Antenne 2 (Second French TV Channel)
- A2 stands for Anti-Access
- A2 stands for Anti-armor
- A2 stands for Aortic Second Sound
- A2 stands for Apple II
A2