HCR
- HCR Corporation
- HCR Manor Care
- Hawaii Consolidated Railway
- Head count ratio
- Health care reform
- Heather Cox Richardson
- High Class Racing
- Highly Cited Researcher
- Hill Climb Racing (video game)
- Hollywood Congress of Republicans
- Holy Cross Airport
- Home Information Pack
- Honey Creek Railroad
- Host-Cell Reactivation
- Hot Chelle Rae
- Hot Club Records
- House concurrent resolution
- Household Cavalry Regiment
- Hover Car Racer
- Human cognitive reliability correlation
- Huntingdon Community Radio
- UTRA-TDD HCR
- United Nations High Commissioner for Refugees