| Acronym | Definition |
|---|
| WEI | Windows Experience Index (Windows Vista benchmark score) |
| WEI | Work Experience in Industry |
| WEI | Week End d'Intégration (French: Weekend of Integration; student jargon) |
| WEI | Windows Experience Index |
| WEI | Western Energy Institute (Portland, OR) |
| WEI | World Education, Inc. (Boston, MA) |
| WEI | Wardrop Engineering Inc. (Canada) |
| WEI | Work Environment Index (job satisfaction) |
| WEI | Winning Edge International (Las Vegas, NV) |
| WEI | World Education International |
| WEI | Weapons in Exchange for Incentives |
| WEI | West Coast Energy Inc |
| WEI | Well Equipment International (petroleum company) |