| Acronym | Definition |
|---|
| IWT | Independent World Television |
| IWT | I Was There |
| IWT | Illegal Wildlife Trade (crime) |
| IWT | International Welding Technologist (certification) |
| IWT | Industrial Wind Turbine |
| IWT | Inverse Wavelet Transform |
| IWT | Incumbent Worker Training |
| IWT | Inland Water Transport |
| IWT | Indus Water Treaty (India and Pakistan) |
| IWT | Inland Waterway Transport |
| IWT | Institute for Women and Technology |
| IWT | Institute for Writing and Thinking (Bard College; New York) |
| IWT | Interest Withholding Tax |
| IWT | I Would Think |
| IWT | Impact World Tour |
| IWT | Instituut voor Wegtransport (Belgium) |
| IWT | International Workshop on Telematics |
| IWT | International Warehousing and Transport |
| IWT | Interstate Waste Technologies, Inc. |
| IWT | Integrated Weapons Team |
| IWT | Intercompany Work Transfer |
| IWT | Interdepartmental Work Team |