| Acronym | Definition |
|---|
| HOP | Hope (Amtrak station code; Hope, AR) |
| HOP | House Of Pain |
| HOP | Hop on Pop (children's book by Dr. Seuss) |
| HOP | House of Payne |
| HOP | Help Other People |
| HOP | Hands on Physics |
| HOP | Houses of Parliament (UK) |
| HOP | Hooked on Phonics (Gateway Learning Corporation) |
| HOP | Housing for Older People |
| HOP | Head of Procurement (various locations) |
| HOP | Head of Profession |
| HOP | Handbook of Pragmatics (linguistics; John Benjamins Publishing Company) |
| HOP | Head on Pillow |
| HOP | Home Occupation Permit (various locations) |
| HOP | Handbook of Operating Procedures (Texas) |
| HOP | Health Outreach Program (various organizations) |
| HOP | Helma Object Publisher |
| HOP | Home Ownership Program (various locations) |
| HOP | Heritage of Pride (New York, NY) |
| HOP | Housing Opportunity Program |
| HOP | Head of Programmes |
| HOP | Homeownership Opportunity Program (various locations) |
| HOP | Heating Oil Partners (now HOP Energy, LLC) |
| HOP | Highway Occupancy Permit |
| HOP | Hungry Owl Project (San Anselmo, CA) |
| HOP | Hosted Order Page (CyberSource) |
| HOP | Highly Oriented Polyolefine (audio technology) |
| HOP | HIV Outpatient Program (Louisiana) |
| HOP | Half-Operator (IRC) |
| HOP | He Oranga Poutama (New Zealand; Maori sports and culture) |
| HOP | Helicopter Operation |
| HOP | Head of Pancreas |
| HOP | Honda Original Parts |
| HOP | Homecast Open Protocol (Wireless LAN) |
| HOP | Hispanic Outreach Project (various locations) |
| HOP | Hrvatski Oslobodilacki Pokret (Croatian Liberation Movement) |
| HOP | High Output Paraffin |
| HOP | Higher Order Path (Sprint, SDH) |
| HOP | High Oxygen Pressure |
| HOP | Health Outreach Partner |
| HOP | Healthy Options for Planeview (Community-Campus Partnership with Wichita State University) |
| HOP | Humboldt Orientation Program (Humboldt State University) |
| HOP | Hands on Partnership |
| HOP | Hand-Off Point |
| HOP | History off the Page (teaching company; est. 1996) |
| HOP | Hospital Outpatient Program (clinical treatment) |
| HOP | Hierarchical Observing Protocol |
| HOP | Hand Off Propose |
| HOP | Helium Oxidizer Tank Pressure |
| HOP | Historic Ocean Profile |
| HOP | Heater Output Power |
| HOP | Home Oxygen Provider |
| HOP | Heropbou En Ontwikkelings Program (Reconstruction and Development Program; South Africa) |