| Abbreviation | Definition |
|---|---|
| TSK | Task |
| TSL | ri-Service Laser |
| TSL | Tri-Service Laser |
| TSM | Terminal Security Matrix |
| TSM | Terminal Support Module |
| TSM | Threat Spectrum Model |
| TSM | TRADOC System Manager |
| TSM | Training Support Materials |
| TSM | Troop Sergeant Major |
| TSM | Trunk Signaling Message |
| TSM-ABCS | TRADOC (United States Army TRAining and DOCtrine Command) Systems Manager - Army Battle Command Systems |
| TSM-ABCS | TRADOC Systems Manager - Army Battle Command Systems |
| TSMB | Top Secret Military Bases |
| TSMO | Threat Simulation Management Office |
| TSN | Track Supervision Net |
| TSN | Trackline Single-Unit Non-Return |
| TSO | Tactical Support Operations |
| TSO | Tactical Systems Officer |
| TSO | Technical Service Order |
| TSO | Technical Staff Officer |