| JCT | Jaded Contracts Tendency 
| Others |
| JCT | Jaguar Cape Town
| Others |
| JCT | Jaguar Club Taiwan
| Others |
| JCT | Japan Consumption Tax
| Others |
| JCT | Japanese Car Trade
| Others |
| JCT | Java Code Tomograph
| Others |
| JCT | Jeep Clube Tamoios
| Others |
| JCT | Jerusalem College of Technology
| Others |
| JCT | JES Control Table
| Others |
| JCT | Jim Clark Trust
| Others |
| JCT | Jim Corbett Tasker
| Others |
| JCT | Job Control Table
| Others |
| JCT | John Christner Trucking
| Others |
| JCT | John Cotten Tayloe
| Others |
| JCT | Johnson City Transit
| Others |
| JCT | Joint Committee on Taxation
| Others |
| JCT | Joint Contracts Tribunal
| Others |
| JCT | Jordan Cosmological Theory
| Others |
| JCT | Journal Control Table
| Others |
| JCT | Journal of Cancer Therapy
| Others |
| JCT | Journal of Cancer Therapy Medicine
| Others |
| JCT | Journal of Coatings Technology
| Others |
| JCT | Journal of Combinatorial Theory
| Others |
| JCT | Journal of Curriculum Theorizing
| Others |
| JCT | Juicy Crunchy Tasty
| Others |
| JCT | Juke Club Thailand
| Others |
| JCT | Junction
| Others |
| JCT | Junction, Texas USA
| Others |
| JCT | Junction, Texas, Seismograph station code
| Others |
| JCT | June Common Tests
| Others |
| JCT | Junior Championship Tour
| Others |