| MDAC | Microsoft Data Access Components | 微软数据存取组件 |
| MDAC | Muscular Dystrophy Association of Canada | 加拿大肌肉营养不良协会 |
| MDAC | Mental Disability Advocacy Center | 精神残疾宣传中心 |
| MDAC | Mitochondrial Disease Action Committee | 线粒体疾病行动委员会 |
| MDAC | Master Data Acquisition and Control (system) | 主数据采集和控制（系统） |
| MDAC | Mississippi Department of Agriculture and Commerce (Jackson, MS, USA) | 密西西比农业和商业部（美国密西西比州杰克逊市） |
| MDAC | Multi-channel Data Acquisition Computer | 多通道数据采集计算机 |
| MDAC | Manning Distribution Advisory Council | 人力分配咨询委员会 |
| MDAC | Multiplying Digital-to-Analog Converter | 乘法数模转换器 |
| MDAC | Multiple-Dose Activated Charcoal | 多剂量活性炭 |
| MDAC | McDonnell Douglas Aerospace Corporation | 麦道航空航天公司 |
| MDAC | Mutual Defense Administration. Committee | 共同防御管理。委员会 |
| MDAC | marrow-derived adherent cell | 骨髓源粘附细胞 |
| MDAC | Multiplying Digital To Analog Converter | 乘法数模转换器 |
| MDAC | Matrix Data Analysis Chart | 矩阵数据分析图 |
| MDAC | Microsoft Data Access Controls | Microsoft数据访问控件 |
| MDAC | Mississippi Department Of Agriculture And Commerce | 密西西比州农业和商业部 |
| MDAC | Multicultural Diversity Advisory Council | 多元文化多样性咨询委员会 |