| JCT | Journal of Combinatorial Theory | 组合理论杂志 |
| JCT | Journal of Curriculum Theorizing | 课程理论杂志 |
| JCT | Job Characteristics Theory | 工作特征理论 |
| JCT | Journal of Coatings Technology | 涂料技术杂志 |
| JCT | Joint Contracts Tribunal (UK build contracts governing body) | 联合合同法庭（英国建筑合同管理机构） |
| JCT | Johnson City Transit | 约翰逊市交通 |
| JCT | John Christner Trucking | 约翰·克里斯特纳卡车 |
| JCT | Joint Committee of Taxation | 税务联合委员会 |
| JCT | Joint Contracts Tribunal | 联合合同法庭 |
| JCT | Jerusalem College of Technology | 耶路撒冷理工学院 |
| JCT | Jaded Contracts Tendency | Jaded Contracts趋势 |
| JCT | Journal Control Table | 日记帐控制表 |
| JCT | Junction, Texas USA | 美国德克萨斯州Junction |
| JCT | JES Control Table | JES控制表 |
| JCT | June Common Tests | 6月普通测试 |
| JCT | Junction, Texas, Seismograph station code | 德克萨斯州Junction，地震台代码 |
| JCT | Jordan Cosmological Theory | 乔丹宇宙论 |