| Acronym | Definition |
|---|
| GWI➣Gulf War Illness |
| GWI➣Global Water Initiative (various locations) |
| GWI➣Garden World Images (library of horticultural color photographs) |
| GWI➣Goodwill Industries (various locations) |
| GWI➣Global Water Intelligence |
| GWI➣Great Works Internet |
| GWI➣General Wage Increase |
| GWI➣Genesee Wyoming, Inc. (freight railroads; various locations) |
| GWI➣Guyana Water Inc |
| GWI➣Groupware Incorporated (Vancouver, WA) |
| GWI➣Galvanized Wrought Iron (pipes) |
| GWI➣Gulf & Western Industries, Inc. |
| GWI➣General Work Instructions |
| GWI➣Games Workshop Interactive |
| GWI➣Grinding Wheel Institute |
| GWI➣Greenhouse Warming Index |
| GWI➣Greenwood International, Inc. |