| Acronym | Definition |
|---|
| CTSE➣Central Test Sire Evaluation (sheep breeding; Australia) |
| CTSE➣Centro Tecnico-Scientifico Europeo (Italian: European Scientific and Technical Center; EU) |
| CTSE➣Chicago, Terre Haute, and Southeastern Railroad |
| CTSE➣Central Technical Support Facility |
| CTSE➣Corps TOC (Tactical Operations Center) Support Element |
| CTSE➣Classification for Transport Statistics in Europe |