| Acronym | Definition |
|---|
| CTRL➣Control |
| CTRL➣Channel Tunnel Rail Link (UK) |
| CTRL➣Controls Library |
| CTRL➣Conspiracy Theory Research List (mailing list) |
| CTRL➣Compagnie des Transports de la Région Lorientaise (France) |
| CTRL➣Computing Technologies Research Lab (UCLA) |
| CTRL➣Rib Lake Telephone Company |
| CTRL➣Cipher Text Remote Loopback |