HIW
| Acronym | Definition |
|---|---|
| HIW | He Is We (band) |
| HIW | How It Works (various organizations) |
| HIW | Hawaiian Island Weddings |
| HIW | Hole in Won (insurance) |
| HIW | Healthcare Inspectorate Wales (independent consumer organization; Caerphilly, Wales, UK) |
| HIW | Hole in the Wall |
| HIW | High Impact Wrestling |
| HIW | Hazardous Industrial Waste |
| HIW | Holiday Inn Worldwide (Atlanta, GA) |
| HIW | High Intensity War |
| HIW | History in Writing |