| Acronym | Definition |
|---|
| DHO➣Delta Holding (various locations) |
| DHO➣Digital Humanities Observatory (Ireland) |
| DHO➣District Health Officer (Pakistan) |
| DHO➣District Health Office |
| DHO➣Databank Hoger Onderwijs (Dutch: Higher Education Database; Belgium) |
| DHO➣Discipline Hearing Officer (Federal Bureau of Prisons) |
| DHO➣District Horticulture Officer (India) |
| DHO➣District Hearing Officer |
| DHO➣Department of Highways Ontario (prior name of Ministry of Transportation Ontario) |
| DHO➣Down Hill Only (UK ski club) |
| DHO➣Dharma Overground (meditation community) |
| DHO➣Diversified Health occupation |
| DHO➣Dangerous Hillside Order |
| DHO➣Disaster Housing Officer (FEMA) |
| DHO➣Day Hospital Oncologico (Italy) |
| DHO➣mono-deuterated water (chemical formula) |
| DHO➣David Henrie Online (fan website) |
| DHO➣Dan Hayes Orchestra (Chicago, IL) |
| DHO➣Deck Hatch Opened |
| DHO➣Digital Hand-Off (telephony) |
| DHO➣Directed Hands-On (training procedure for instructing students) |