| SETI | Search for Extraterrestrial Intelligence | 搜寻外星智能 |
| SETI | Strategic Electronic Technology Information | 战略电子技术信息 |
| SETI | Space Exploration & Theology Institute | 太空探索和神学研究院 |
| SETI | Electrical Inspectorate Sarkiniementie (Finland Approval Agency) | 电气检查局Sarkiniementie（芬兰认证机构） |
| SETI | Stock Exchange of Thailand Index | 泰国证券交易所指数 |
| SETI | Search For Extra Terrestial Intelligence | 搜索额外的地球智力 |
| SETI | Search For Easy Terrestrial Items | 搜索简易地面项目 |
| SETI | The Search For Extra Terestrial Inteligence | 寻找外星智能 |
| SETI | Scientific Engineering And Technological Institutions | 科学工程和技术机构 |
| SETI | Search For Extra Transistors Inside | 搜索内部的额外晶体管 |
| SETI | Stupid Earthlings To Invaders | 愚蠢的地球对入侵者 |