| SEMA | Specialty Equipment Manufacturers Association | 特种设备制造商协会 |
| SEMA | Southeastern Medieval Association | 东南中世纪协会 |
| SEMA | Speed Equipment Manufacturers Association | 速度设备制造商协会 |
| SEMA | Specialty Equipment Market Association | 特种设备市场协会 |
| SEMA | Specialty Equipment Manufacturer's Association | 特种设备制造商协会 |
| SEMA | Specialty Equipment Marketing Association | 特种设备营销协会 |
| SEMA | Southeastern Electricity Metering Association | 东南电力计量协会 |
| SEMA | Send Extra Money Away | 把多余的钱寄走 |
| SEMA | SouthEast/Middle Atlantic | 东南亚/大西洋沿岸中部 |
| SEMA | Segmented Electro Magnetic Array | 分段电磁阵列 |
| SEMA | State Emergency Management Agency | 国家应急管理局 |
| SEMA | Session-based Mobile AdHoc Network Architecture (Yeditepe University) | 基于会话的移动AdHoc网络架构（Yeditpe University） |
| SEMA | Senior Employment Medical Adviser (UK) | 高级就业医疗顾问（英国） |
| SEMA | Special Electronic Mission Aircraft | 特种电子任务飞机 |
| SEMA | Semaphorin | 语义素 |
| SEMA | Situation-Execution Monitor Advisor | 态势执行监控顾问 |
| SEMA | Software Engineering Measurement and Analysis (SEI) | 软件工程测量与分析（SEI） |
| SEMA | Synergie Entreprise Milieu d'Accueil (Belgium) | Synergie企业环境d 'Accueil(比利时) |
| SEMA | SociÉtÉ d'Encouragement aux MÉtiers d'Art (Society for the Promotion of Art Trades; France) | SociÉtÉ d'Encouragement aux MÉtiers d'Art (Society for the Promotion of Art Trades; France) |
| SEMA | Systems Engineering & Management Associates, Incorporated | 系统工程与管理员工、注册 |
| SEMA | Software Engineering Measurement and Analysis | 软件工程测量与分析 |
| SEMA | Special Equipment Mission Aircraft | 特种设备任务飞机 |