| Annette Island, Alaska USA | Regional Airport Code | ANN |
| Approximate Nearest Neighbors | Computer Networking | ANN |
| Ammonia Nitrite Nitrate | Chemistry | ANN |
| ANN INC. | NASDAQ Symbol | ANN |
| Active Node Network | Computer Networking | ANN |
| Windows 3.x Help ANNotations | File Extension | ANN |
| Program Director for Navigation and Landing | Transportation | ANN |
| Artificial Neural Network | Electronics | ANN |
| Adventist News Network | Network | ANN |
| Assign Nnx Routing | Military and Defence | ANN |
| AnnTaylor Stores Corporation | NYSE Symbol | ANN |
| A New Nigeria | Organization | ANN |
| Annette Island airport | Regional Airport Code | ANN |
| Anime News Network | Network | ANN |
| Annette Island (ak) | Airport Code | ANN |
