| Acronym | Definition |
|---|
| ANN | Annual |
| ANN | Anime News Network (Anime web site) |
| ANN | Artificial Neural Network |
| ANN | Annals |
| ANN | Annealed |
| ANN | Asia News Network |
| ANN | Alternative News Network (various organizations) |
| ANN | Annunciator |
| ANN | Alaska News Nightly (podcast) |
| ANN | Answer Signal No Charge |
| ANN | Anime News Network |
| ANN | Announcement Date |
| ANN | Arab News Network |
| ANN | Alternativa Nueva Nación (Spanish: New Alternative Nation; political party; Guatemala) |
| ANN | Assign NNX Routing (US DoD) |
| ANN | Alianza Nueva Nación (Spanish: New Nation Alliance, Guatemala) |
| ANN | Angry Nintendo Nerd |
| ANN | America's Note Network (Westminster, CO) |
| ANN | Armenian News Network |
| ANN | Answer Signal, No Charge |
| ANN | Answer No-Charge (ITU-T) |
| ANN | Auditing Network Needs |
| ANN | Aluminum Nitrate Nonhydrate |
| ANN | Automated Neural Net |
| ANN | Azer.Net News Network |