| Acronym | Definition |
|---|
| IGW➣Industrial Security Gateway |
| IGW➣Internet Gateway |
| IGW➣International Gateway |
| IGW➣International Green Week (trade show) |
| IGW➣Increased Gross Weight (Boeing) |
| IGW➣Investment Grade Wine |
| IGW➣IrelandGenWeb (online genealogical project) |
| IGW➣Integrated Gateway |
| IGW➣Integral Gateway |
| IGW➣Inter-Galactic War |
| IGW➣If God's Willing |