| ANAS | ATM Network Access Subsystem | ATM网接入子系统 |
| ANAS | Adaptation in Natural and Artificial Systems (introduced in 1975 by Jon H. Holland) | 自然和人工系统的适应（Jon H.Holland于1975年提出） |
| ANAS | anastomosis | 吻合 |
| ANAS | auditory nerve-substance activating | 听觉神经物质激活 |
| ANAS | Alabama Newspaper Advertising Service | 阿拉巴马州报纸广告服务 |
| ANAS | Azerbaijan National Academy of Sciences | 阿塞拜疆国家科学院 |
| ANAS | Azienda Nazionale Autonoma delle Strade (Italy) | Azienda Nazionale Autonoma delle Strade（意大利） |