WGI
| Acronym | Definition |
|---|---|
| WGI | Winter Guard International |
| WGI | Worldwide Governance Indicators (World Bank) |
| WGI | World Games Inc |
| WGI | Wexford Group International |
| WGI | Warszawska Grupa Inwestycyjna (Polish: Warsaw Investment Group) |
| WGI | Washington Group International, Inc. |
| WGI | Within Grade Increase |
| WGI | William Glasser Institute (Chatsworth, CA) |
| WGI | Working Group on Informatics (United Nations) |