| DAC | Douglas Aircraft Company | (美国)道格拉斯飞机公司 |
| DAC | District Advisory Council | 地区顾问理事会 |
| DAC | Department of Arts and Culture | 艺术和文化部 |
| DAC | Department of the Army Civilian | 军队文职部 |
| DAC | Disaster Assistance Center | 灾难评估中心 |
| DAC | Downtown Athletic Club | 商业区运动俱乐部 |
| DAC | Design Automation Conference | 设计自动化会议 |
| DAC | Disability Action Council | 残疾行动理事会 |
| DAC | Development Assistance Committee | 资助发展委员会 |
| DAC | Dairy Association of China | 中国奶业协会 |
| DAC | Digital to Analog Converter | 模拟/数字信号转换器 |
| DAC | Discretionary Access Control | 有条件进入控制 |
| DAC | Dual Address Cycle | 双重地址周期 |
| DAC | Device Access Code | 设备访问码 |
| DAC | Data Acquisition Center | 数据采集中心 |
| DAC | Data Acquisition Controller | 数据采集控制器 |
| DAC | Disk Array Controller | 磁盘阵列控制器 |
| DAC | Dual Attachment Concentrator | 双连接集中器 |
| DAC | Data Acquisition Computer | 数据采集计算机 |
| DAC | Data Access Component | 数据访问组件 |
| DAC | Data Acquisition Camera | 数据采集相机 |
| DAC | Data Assembly Center | 数据汇编中心 |
| DAC | Dynamic Adaptive Compilation | 动态自适应编译 |
| DAC | Data Authentication Code | 数据鉴定代码 |
| DAC | Defense Ammunition Center | 国防弹药中心 |
| DAC | Damage Assessment Center | 损伤评估中心 |
| DAC | Digital-to-Analog Converter | 数模转换器 |
| DAC | Donor Awareness Council | 捐助者意识委员会 |
| DAC | Downed Aircraft | 坠落的飞机 |
| DAC | Demodulator and Access Controller | 解调器和访问控制器 |
| DAC | Diamond Anvil Cell | 金刚石砧细胞 |
| DAC | Design Analysis Cycle | 设计分析周期 |
| DAC | Divide and Conquer | 分治与征服 |
| DAC | Data Analysis Console | 数据分析控制台 |
| DAC | Donor-Acceptor Complex | 供体-受体复合体 |
| DAC | Disaster Application Center | 灾难应用中心 |
| DAC | Document Availability Code | 文档可用性代码 |
| DAC | District Accountability Committee | 地区问责委员会 |
| DAC | Democratic Action Committee | 民主行动委员会 |
| DAC | Duck And Cover (website) | 鸭子和盖子（网站） |
| DAC | Deliberate Assault Course | 故意攻击课程 |
| DAC | Data Abstraction Coupling | 数据抽象耦合 |
| DAC | Durham Arts Council | 达勒姆艺术委员会 |
| DAC | Degree of Articulatory Constraint (speech) | 发音限制程度（言语） |
| DAC | Daughters of American Colonists | 美国殖民者的女儿 |
| DAC | Department of Analytical Chemistry | 分析化学系 |
| DAC | DocuWare Application Consultant | DocuWare应用程序顾问 |
| DAC | Dazed and Confused | 眼花缭乱 |
| DAC | Downtown Action Committee | 市中心行动委员会 |
| DAC | Development Aid Committee | 发展援助委员会 |
| DAC | Department of Agriculture and Cooperation (India) | 农业与合作部（印度） |
| DAC | Douglas Adams Continuum (forum) | Douglas Adams Continuum（论坛） |
| DAC | Derived Air Concentrator | 衍生空气浓缩器 |
| DAC | Direct Air Charger | 直接空气充电器 |
| DAC | Diversity Advisory Committee | 多样性咨询委员会 |
| DAC | Days After Contract | 合同签订后天数 |
| DAC | Data Acquisition Converter | 数据采集转换器 |
| DAC | Deaf Action Committee for Sign Writing | 聋人手语书写行动委员会 |
| DAC | Declare Address Constant | 声明地址常量 |
| DAC | Door, Air Curtain | 门，气帘 |
| DAC | Double Annular Combustor (gas turbine engines) | 双环燃烧室（燃气涡轮发动机） |
| DAC | DesRosiers Automotive Consultants | DesRosiers汽车顾问 |
| DAC | Director Assignment Console | 控制器分配控制台 |
| DAC | Days After Contract (award) | 合同签订后的天数（授予） |
| DAC | Deployable ACCS Component | 可部署ACCS组件 |
| DAC | Deferred Acquisition Costs | 递延收购成本 |
| DAC | Drug Alcohol Counseling | 药物酒精咨询 |
| DAC | Data Access Committee | 数据访问委员会 |
| DAC | Dark Angel Creations | 黑暗天使创作 |
| DAC | Digital to Audio Converter | 数字音频转换器 |
| DAC | Daskalakis Athletic Center (Drexel University, Philadelphia, PA) | 达斯卡拉基斯体育中心（宾夕法尼亚州费城德雷克塞尔大学） |
| DAC | Disabled Adult Child | 残疾成年儿童 |
| DAC | Dhaka, Bangladesh | 孟加拉国达卡 |
| DAC | Divert Attitude Control | 转向姿态控制 |
| DAC | Division Aviation Company | 分部航空公司 |
| DAC | Deutsche Alternative Charts (Germany) | Deutsche Alternative Charts（德国） |
| DAC | Daily Administrative Check | 每日行政检查 |
| DAC | Detailed Attack Characterization | 详细的攻击特征 |
| DAC | Device Access Code (Bluetooth) | 设备访问码（蓝牙） |
| DAC | Data Acquisition Card | 数据采集卡 |
| DAC | Dual Attached Concentrator (FDDI/CDDI) | 双附器(FDDI / CDDI) |
| DAC | Divisional Ammunition Column | 分区弹药纵队 |
| DAC | Detroit Athletic Club | 底特律运动俱乐部 |
| DAC | Durex Abrasives Corporation | 杜蕾斯磨料公司 |
| DAC | Dacian (linguistics) | 达契亚语（语言学） |
| DAC | Direct Attach Channel | 直接连接通道 |
| DAC | Dual Attachment Concentrator (FDDI) | 双附件集中器（FDDI） |
| DAC | Danmarks Arkæometriske Center (Danish Archaeometric Centre) | Danmarks Arkæometriske Center (Danish Archaeometric Centre) |
| DAC | Date of Award of Contract | 合同授予日期 |
| DAC | Delta Alliance Corps (Riverside, California) | 三角洲联盟军团（加利福尼亚州河滨） |
| DAC | Design, Analysis, and Construction | 设计、分析和施工 |
| DAC | Delta Assistant Controller | Delta助理控制器 |
| DAC | Doctoral Addictions Counselor | 博士成瘾顾问 |
| DAC | Data Assembly Centers | 数据装配中心 |
| DAC | Deputy Assistant Commandant | 副助理司令官 |
| DAC | Dual Attached Concentrator | 双连接集中器 |
| DAC | Digital Autopilot Controller | 数字自动驾驶控制器 |
| DAC | Downhill Assist Control (automobiles) | 下坡辅助控制（汽车） |
| DAC | Dean Advisory Council | 院长咨询委员会 |