| CELT | Centre for the Enhancement of Learning and Teaching (Lancaster University, UK) | 促进学习和教学中心（英国兰卡斯特大学） |
| CELT | Corpus of Electronic Texts (Ireland) | 电子文本语料库（爱尔兰） |
| CELT | Cognitive Emotional Linguistic Training | 认知情感语言训练 |
| CELT | Centre for English Language Teaching (Stirling, Scotland) | 英语教学中心（苏格兰斯特林） |
| CELT | Coherent Emitter Location Techniques | 相干辐射源定位技术 |
| CELT | Crypto Equipment for Low-Speed Telegraphy | 用于低速电报的密码设备 |
| CELT | Center for Educational Leadership and Technology | 教育领导与技术中心 |
| CELT | California Extremely Large Telescope | 加州超大望远镜 |
| CELT | Celtic Investments, Inc. | 凯尔特投资公司。 |
| CELT | Central European Land Teracer | 中欧陆地Teracer |
| CELT | Center for Engineering Learning and Teaching | 工程学习与教学中心 |
| CELT | Christian Education Leadership Training | 基督教教育领导力培训 |
| CELT | Celtic | 凯尔特人 |
| CELT | Consolidated Entry Level Training | 综合入门级培训 |
| CELT | California English Language Test | 加州英语语言测试 |