| SIEM | Secretariat Institution of Engineers Malaysia | 马来西亚工程师协会秘书处 |
| SIEM | Security Information and Event Management | 安全信息和事件管理 |
| SIEM | Sistema de InformaciÓn Empresarial Mexicano | Sistema de InformaciÓn Empresarial Mexicano |
| SIEM | scanning immuno-electron microscopy | 扫描免疫电镜 |
| SIEM | Sistema de InformaciÓn Empresarial Mexicano (Mexican Enterprise Information System) | Sistema de InformaciÓn Empresarial Mexicano (Mexican Enterprise Information System) |
| SIEM | SocietÀ Italiana di Elettromagnetismo (Italian Electromagnetic Society) | SocietÀ Italiana di Elettromagnetismo (Italian Electromagnetic Society) |
| SIEM | System Information Exchange Matrix | 系统信息交换矩阵 |
| SIEM | SocietÀ Italiana per l'Educazione Musicale (Italian society for musical education) | SocietÀ Italiana per l'Educazione Musicale (Italian society for musical education) |
| SIEM | Security Incident and Event Manager | 安全事件和事件管理器 |