| Abbreviation | Definition |
|---|---|
| TIFR | Tata Institute of Fundamental Research |
| TIH | Tewksbury Institute of Herpetology |
| TII | Turtle Island Institute |
| TIK | Institut für Technische Informatik und Kommunikationsnetze |
| TIL | Teaching Indigenous Languages |
| TILS | The Institute of Legal Studies |
| TIME | Trends In Mechanical Engineering |
| TIMES | Tournament In Management And Engineering Skills |
| TIMI | The International Management Institute |
| TIMS | Teaching Integrated Mathematics and Science |
| TIMS | The Institute of Management Sciences |
| TIMS | TMN-based Information Model Simulator |
| TIMSS | Third International Mathematics And Science Study |
| TIOT | Tokyo Institute Of Technology |
| TIP | Talent Identification Program |
| TIP | Technical Individual Program |
| TIP | Textile Institute of Pakistan |
| TIP | Theories Into Practice |
| TIP | Turn In Problem |
| TIPC | Technology In Practice Committee |