| SMAC | shielded metal arc cutting | 焊条电弧切割 |
| SMAC | Space Maintenance Analysis Centre | 航天维护分析中心 |
| SMAC | State Maximum Allowable Cost (pharmacy) | 州最大允许成本（药房） |
| SMAC | Sit Meum Auxilium Christus (Latin: Christ Be My Help, epigraphy) | Sit Meum Auxilium Christus（拉丁语：Christ Be My Help，金石学） |
| SMAC | Sunday Morning After Church | 星期日早晨教堂后 |
| SMAC | Student Movement Against Cancer (Scotch Plains-Fanwood High School) | 学生抗癌运动（Scotch Plains Fanwood高中） |
| SMAC | Source Media Access Control (Cisco) | 源媒体访问控制（Cisco） |
| SMAC | Suspect Material Action Committee | 可疑物质行动委员会 |
| SMAC | Scene Matching Area Correlator | 场景匹配区域相关器 |
| SMAC | Safe Money and Credit (SMAC Vault, Inc.) | 安全货币和信贷（SMAC Vault，Inc.） |
| SMAC | Simple Media Access Control Protocol | 简单媒体访问控制协议 |
| SMAC | Southern Maryland Athletic Conference | 马里兰州南部运动会议 |
| SMAC | Sequential Multiple Analyzer Computer | 顺序多分析仪计算机 |
| SMAC | Shipment Mobility/Accountability Collection | 装运流动/责任收藏 |
| SMAC | State Mapping Advisory Council | 国家测绘咨询委员会 |
| SMAC | Supramolecular Activation Complex | 超分子活化复合物 |
| SMAC | Suppliers and Manufacturers in Automotive Collaboration | 汽车合作中的供应商和制造商 |
| SMAC | Specific, Measurable, Achievable, and Challenging (objectives) | 具体、可衡量、可实现和具有挑战性（目标） |
| SMAC | Service Center Mainframes Accelerated Consolidation | 服务中心大型机加速整合 |
| SMAC | Sorbitol MacConkey Agar (clinical microbiology laboratories) | 山梨醇麦康基琼脂（临床微生物学实验室） |
| SMAC | Specific Measurable Achievable And Consistent | 具体可衡量、可实现且一致 |
| SMAC | Saturday Morning Athletic Club | 周六上午体育俱乐部 |
| SMAC | SupraMolecular Activation Cluster | 超分子活化簇 |
| SMAC | Sport Martial Arts Champions | 体育武术冠军 |
| SMAC | Seacoast Martial Arts Center | 海岸武术中心 |
| SMAC | Student Movement Against Cancer | 学生抗癌运动 |
| SMAC | Summer Monetary Assistance Contribution | 夏季货币援助捐款 |
| SMAC | The Smith Martial Arts Club | 史密斯武术俱乐部 |
| SMAC | Southern Michigan Adventure Club | 南密歇根探险俱乐部 |
| SMAC | Securities Movement and Control (stocks and bonds transactions accounting) | 证券流动和控制（股票和债券交易会计） |
| SMAC | Servicio de MediaciÓn, Arbitraje y ConciliaciÓn | Servicio de MediaciÓn, Arbitraje y ConciliaciÓn |
| SMAC | Sport Martial Arts Championship | 体育武术锦标赛 |
| SMAC | Supplier Management Awareness and Commitment | 供应商管理意识和承诺 |
| SMAC | Smac MAC Address Changer | Smac MAC地址转换器 |
| SMAC | Solow, Minhas, Arrow, Chenery (production function authors) | Solow、Minhas、Arrow、Chenery（生产函数作者） |
| SMAC | Single Manned Attack Craft (Space Master RPG) | 单人攻击艇（太空大师RPG） |
| SMAC | Standing Medical Advisory Committee | 常设医疗咨询委员会 |
| SMAC | Sid Meier's Alpha Centauri (game) | 开发的阿尔法星(游戏) |
| SMAC | Swindon Mini Associates Club | Swindon Mini Associates俱乐部 |
| SMAC | Spacecraft Maximum Allowable Concentration | 航天器最大允许浓度 |
| SMAC | Sensor Media Access Control Protocol | 传感器介质访问控制协议 |
| SMAC | sequential multiple analyzer and computer | 顺序多重分析仪与计算机 |
| SMAC | Sid Meiers Alpha Centauri | 半人马座阿尔法星 |
| SMAC | Second Mitochondria-Derived Activator of Caspases (apoptosis; hematology) | 第二线粒体衍生的Caspase激活剂（凋亡；血液学） |
| SMAC | Smap Music Anniversary Cd | Smap音乐周年纪念Cd |
| SMAC | Student Mentoring Another Class | 学生辅导另一个班级 |
| SMAC | Students of Minnesota Athletic Council | 明尼苏达州体育委员会学生 |
| SMAC | Simulation Model Of Automobile Collisions | 汽车碰撞仿真模型 |