| Abbreviation | Definition |
|---|---|
| IET | Industrial and Engineering Technology |
| IET | Industrial Engineering Technician |
| IET | Information and Engineering Technologies |
| IET | Institute of Engineering of Technology |
| IETA | International Engineering Technologists Agreement |
| IETI | International Engineering and Technology Institute |
| IEV | Innovative Engineering Ventures |
| IFCE | International Federation of Consulting Engineers |
| IFEE | International Forum on Engineering Education |
| IFEI | International Forest Engineering Institute |
| IFER | Integrated fire engineering and response |
| IGE | Introduce a Girl to Engineering |
| IGEC | Isope Geotechnical Engineering Committee |
| IGEM | International Genetically Engineering Machine |
| IGEM | International Genetically Engineering Mechine |
| IIET | Indian Institute of Engineering and Technology |
| IIET | International Institute of Engineering and Technology |
| IISE | Institute for Innovation in Sustainable Engineering |
| IJCE | Infant Jesus College Of Engineering |
| IJCE | International Journal of Chemical Engineering |