HWI
| Acronym | Definition |
|---|---|
| HWI | Hardware Interface |
| HWI | Health & Wellness Institute (Providence, RI) |
| HWI | Hot Wire Ignition |
| HWI | Healthy Workplace Initiative (various organizations) |
| HWI | Hazardous Waste Incinerator |
| HWI | Hawk Watch International (Salt Lake City, UT) |
| HWI | High Water Interval |
| HWI | Hardware Industries |
| HWI | His Wheels International (Wheaton, IL) |
| HWI | Hard Winter Wheat Index |
| HWI | Hekimian Web Interface |
| HWI | Health World International, Inc. |