GTCL
| Acronym | Definition |
|---|---|
| GTCL | Goodyear Technical Center Luxembourg |
| GTCL | Great Circle (navigation) |
| GTCL | Gujarat Telephone Cables Ltd. (India) |
| GTCL | Gas Transmission Co. Ltd. (India) |
| GTCL | Global Testing Corp. Ltd. (Singapore) |
| GTCL | Graduate Trinity College London |