| 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. |