| Acronym | Definition |
|---|
| AC3➣Assassin's Creed 3 (gaming) |
| AC3➣Advanced Cluster Computer Consortium |
| AC3➣Audio Coding Three |
| AC3➣Armored Core 3 (video game) |
| AC3➣Ace Combat 3 (game) |
| AC3➣Audio Compression - 3 |
| AC3➣Armor Captains Career Course |
| AC3➣Air Controlman Third Class (US Navy Rating) |
| AC3➣Access Category 3 (highest access priority) |