| Acronym | Definition |
|---|
| WFI | Wait for It |
| WFI | Water For Injection |
| WFI | Wait for Input |
| WFI | Waiting for End of User Interaction |
| WFI | Wide Field Imager |
| WFI | World Federation of Investors (Belgium) |
| WFI | Wellness Fitness Initiative (International Association of Fire Fighters) |
| WFI | Wireless Facilities Inc. |
| WFI | Workforce Florida, Inc. |
| WFI | WaterFurnace International |
| WFI | Work Focused Interview |
| WFI | Water For Irrigation |
| WFI | Wilmington Finance, Inc. (Wilmington, DE) |
| WFI | Waitrose Food Illustrated (est. 1998; magazine) |
| WFI | Wait for Interrupt (computer instruction) |
| WFI | Workforce Involvement |
| WFI | Wraparound Fidelity Index |
| WFI | Washington Food Industry (Olympia, WA) |
| WFI | Worst-Case Fairness Index |
| WFI | World Federalist Institute (est. 1947) |
| WFI | Wake Forest Institute (North Carolina, USA) |
| WFI | Warfighter Interface |
| WFI | Waiting for Instructions |
| WFI | Workflow and Imaging (work processing and document imaging software) |
| WFI | Waiting For Igor |
| WFI | Westland Free Issue (Westland Helicopters Ltd.) |