| Acronym | Definition |
|---|
| TISM➣Telecommunication, Information Studies and Media (academics) |
| TISM➣This Is Serious Mum (Australian band) |
| TISM➣The Incredible Shrinking Man |
| TISM➣TEED Internet Security Manager |
| TISM➣TACLANE Internet Security Manager |
| TISM➣Test Instrumentation Support Module |