| TIIP | Tank Installers Indemnification Program 
| Others |
| TIIP | Teacher Induction Investment Program
| Others |
| TIIP | Teacher Initiated Inquiry Projects
| Others |
| TIIP | Tennessee Industrial Infrastructure Program
| Others |
| TIIP | The Investment Integration Project
| Others |
| TIIP | Thrombus Induced Ischemic Pain
| Others |
| TIIP | Topographic Imagery Integration Prototype
| Others |
| TIIP | Tourism Infrastructure Investment Programme
| Others |
| TIIP | Transportation Infrastructure Investment Plan
| Others |