| Acronym | Definition |
|---|
| HVO➣Hawaiian Volcano Observatory (USGS) |
| HVO➣Hydrotreated Vegetable Oil |
| HVO➣Health Volunteers Overseas |
| HVO➣Hydrogenated Vegetable Oil (solid fat) |
| HVO➣Høgskolen I Volda (college in Volda, Norway) |
| HVO➣Hrvatsko Vijeæe Obrane (Croatian Defence Council, Bosnia) |
| HVO➣Hyatt Vacation Ownership (Global Hyatt Corp.) |