| AND | Automatic Network Dialing | 自动网络拨号 |
| AND | Andorra | 安道尔 |
| AND | Association for the Neurologically Disabled of Canada | 加拿大神经残疾人协会 |
| AND | Andrea Electronic Corporation | Andrea电子公司 |
| AND | Associate Administrator for NAS Development | NAS开发副管理员 |
| AND | Analytics for Noisy Unstructured Text Data (Workshop) | 噪声非结构化文本数据分析（研讨会） |
| AND | [not an acronym] logical operation where the output is high only if all inputs are high (electrical engineering) | [不是首字母缩略词]逻辑操作，只有当所有输入都为高时，输出才为高（电气工程） |
| AND | Access Network Design | 接入网络设计 |
| AND | Allow Natural Death (medical charts) | 允许自然死亡（医学图表） |
| AND | Aircraft Nose Down | 飞机机头向下 |
| AND | Active Network Diagram | 活动网络图 |
| AND | Aid to the Needy Disabled (SSI) | 残疾人援助（SSI） |
| AND | Active Nutation Damping | 主动章动阻尼 |
| AND | Logical AND | 逻辑AND |
| AND | algoneurodystrophy | 痛觉神经营养不良 |
| AND | Argument Number Decrease | 参数编号减少 |
| AND | Associate Administrator for NAS (National Air Space) Development (FAA) | 美国国家航空航天局（NAS）发展副局长（FAA） |
| AND | Automatic Digital Network | 自动数字网络 |
| AND | Asiatic Newcastle Disease | 亚洲新城疫 |
| AND | Andorra (International Auto Identifier) | 安道尔（国际自动识别码） |
| AND | Alpha Numeric Display (aviation) | 字母数字显示（航空） |