| Abbreviation | Definition |
|---|---|
| TCF | Twin City Flat |
| TCH | Temporary Care Hearing |
| TCHC | Toronto Community Housing Corporation |
| TCIC | Tennessee Crime Information Center |
| TCIC | Texas Crime Information Center |
| TCIC | Twin Cities Industrial Control |
| TCID | Town Center Improvement District |
| TCID | Truckee Carson Irrigation District |
| TCIP | Texas Continuous Improvement Process |
| TCIP | Tobacco Control Integration Project |
| TCIP | Transportation Capital Improvement Program |
| TCIR | Tarrant County Immunization Registry |
| TCMF | Tourism Cooperative Marketing Fund |
| TCOLE | Texas Commission on Law Enforcement |
| TCPA | The Trusted Computer Protection Alliance |
| TDCI | Tennessee Department of Commerce and Insurance |
| TDCJ | Texas Department of Criminal Justice |
| TDCP | Tourism Development Corporation of Punjab |
| TDD | Transportation Development District |
| TDES | Tennessee Department of Employment Security |