| SIFT | selected ion flow tube | 选择离子流管 |
| SIFT | Summer Institute For Future Teachers | 未来教师暑期学院 |
| SIFT | Scheduled Intentional Focused Time | 计划的有意关注时间 |
| SIFT | Short-term Inundation Forecasting of Tsunamis project | 海啸项目短期淹没预测 |
| SIFT | Sustainable Investment and Finance in Tourism Network (UNEP) | 旅游业可持续投资和融资网络（环境署） |
| SIFT | Secure Internet Filtering Technology (consortium) | 安全互联网过滤技术（联合体） |
| SIFT | Stanford Information Filtering Tool | 斯坦福信息过滤工具 |
| SIFT | Scan, Investigate, Filter, and Target | 扫描、调查、筛选和目标 |
| SIFT | Service Increment for Teaching (UK) | 教学服务增量（英国） |
| SIFT | Singapore Institute of Food Science and Technology | 新加坡食品科学与技术研究所 |
| SIFT | System Identification from Tracking | 从跟踪中识别系统 |
| SIFT | Selectively Improved Flagging Task | 选择性改进的标记任务 |
| SIFT | Sender Initiated File Transfer Protocol | 发件人启动的文件传输协议 |
| SIFT | Systematic Inspection of Features in the Territory (Hong Kong) | 系统检查领土内的地貌（中国香港） |
| SIFT | Service Increment For Teaching | 教学服务增值 |
| SIFT | Strain Invariant Failure Theory | 应变不变失效理论 |
| SIFT | skin integrity function test | 皮肤完整性功能测试 |
| SIFT | Software Implemented Fault Tolerance | 软件实现的容错 |
| SIFT | specified investment flow-through | 指定投资流量 |
| SIFT | Simulation Interface Toolset | 仿真界面工具集 |
| SIFT | Scale Invariant Feature Transform | 比例不变特征变换 |
| SIFT | Symbol Imagery Figurative Language Theme (literature) | 符号意象形象语言主题（文学） |
| SIFT | Sorting Intolerant from Tolerant | 将不容忍与容忍区分开来 |
| SIFT | Sum Index Flow Technology (Navision) | 总和指数流技术（Navision） |