| TISC | Technical Integration Steering Committee
| Others |
| TISC | Technology and Innovation Support Centers
| Others |
| TISC | Tertiary Institutions Service Centre
| Others |
| TISC | Theater Information Systems Command
| Others |
| TISC | Thorney Island Sailing Club
| Others |
| TISC | Tire Industry Safety Council
| Others |
| TISC | Topeka Independent Soccer Club
| Others |
| TISC | Transport Industries Skills Centre
| Others |
| TISC | Transport Industry Skill Centre
| Others |
| TISC | Travtek Information Service Center
| Others |
| TISC | Treasure Island Sailing Center
| Others |
| TISC | Triangle Independent School Consortium
| Others |
| TISC | Tucson Indoor Sports Center
| Others |