| Acronym | Definition |
|---|
| CTHA➣Chemical Tariff Harmonization Agreement |
| CTHA➣Canadian Table Hockey Association (Canada) |
| CTHA➣Colorado Tier Hockey Association |
| CTHA➣Centro Tecnico Hondureño Aleman (Spanish: Honduran German Technical Center; school) |
| CTHA➣Center for Theory and History of Architecture |
| CTHA➣Contrawound Torodial Helical Antenna (also seen as CWTHA) |
| CTHA➣Columbus Travel Hockey Association (Georgia) |
| CTHA➣Colonial Treasure Hunters Association |
| CTHA➣Christian Treasure Hunters Association |
| CTHA➣Connecticut Volunteer Heavy Artillery regiment |