| MAIS | Mediterranean Association of International Schools (Madrid, Spain) | 地中海国际学校协会（西班牙马德里） |
| MAIS | Mountain Area Information Network | 山区信息网 |
| MAIS | medical automation intelligence system | 医疗自动化智能系统 |
| MAIS | mycobacterium avium,(mycobacterium)intracellulae,(mycobacterium)scrofulaceum | 鸟分枝杆菌、细胞内分枝杆菌、淋巴结分枝杆菌 |
| MAIS | Murdoch Authentication And Identification System | 默多克认证和识别系统 |
| MAIS | Mobile Automated Information System | 移动自动化信息系统 |
| MAIS | Multi-cultural Australia and Immigration Studies | 澳大利亚多元文化与移民研究 |
| MAIS | Maintenance Analysis Information Sheet | 维护分析信息表 |
| MAIS | Micro Archiefinventarisatie Systeem | 微观档案管理系统 |
| MAIS | Municipal Accounting and Information Systems | 市政会计和信息系统 |
| MAIS | Michigan Administrative Information Services (University of Michigan, Ann Arbor, MI) | 密歇根行政信息服务（密歇根大学，密歇根州安娜堡） |
| MAIS | Master of Arts in International Studies | 国际研究文学硕士 |
| MAIS | Modular Airborne Imaging Spectrometer | 模块化机载成像光谱仪 |
| MAIS | Moduli Di Autoapprendimento Dell'informatica per Studenti (Italian) | 迪Autoapprendimento戴尔'informatica异物Studenti(意大利) |
| MAIS | Mauritius Agricultural Information System | 毛里求斯农业信息系统 |
| MAIS | Multichannel Adaptive Information Systems (Italy) | 多信道自适应信息系统（意大利） |
| MAIS | Military Airlift Intelligence System | 军事空运情报系统 |
| MAIS | Murdoch Authentication and Identification System (Murdoch University, Perth, Western Australia) | 默多克认证和身份识别系统（西澳大利亚珀斯默多克大学） |
| MAIS | Mallya Aditi International School | Mallya Aditi国际学校 |
| MAIS | Maintenance Information System | 保养信息系统 |
| MAIS | Master of Arts, Integrated Studies | 艺术硕士，综合研究 |
| MAIS | Materiel Acquisition Integrated System | 物资采集集成系统 |
| MAIS | Major Automated Information System (US DoD) | 主要自动化信息系统（美国国防部） |
| MAIS | Movimento per l'Autosviluppo, l'Interscambio e la SolidarietÀ | Movimento per l'Autosviluppo, l'Interscambio e la SolidarietÀ |
| MAIS | Method Adapted for Intermolecular Studies | 适用于分子间研究的方法 |
| MAIS | Macroinvertebrate Aggregate Index for Streams | 河流大型无脊椎动物聚集指数 |
| MAIS | Mobile Automated Instrumentation Suite (US Army) | 移动自动化仪表套件（美国陆军） |