| Acronym | Definition |
|---|
| JCTA | Jefferson County Teachers Association (Louisville, KY) |
| JCTA | Journal of Combinatorial Theory, Series A (Elsevier publication) |
| JCTA | Joint Canadian Tanning Association (trade association) |
| JCTA | Journal of Control Theory and Applications (Springer publication) |
| JCTA | Japan Cable and Telecommunications Association (est. 1980) |
| JCTA | Japan Cable Television Association |
| JCTA | Johannesburg City Tourism Association (Johannesburg, South Africa) |
| JCTA | Johnson County Trails Association (Johnson County, TN) |
| JCTA | John Costa Tactical Artwork |
| JCTA | Journée de la Coopération Tuniso-Allemande (French: Tunisian-German Day Cooperation) |
| JCTA | Jefferson County Tennis Association (est. 2001; Madison, IN) |
| JCTA | Junior Cricket Training Academy |
| JCTA | John Connell Technology Award |
| JCTA | Juventud Cristo Te Ama (Spanish: Christ Loves Youth) |