HRS
- Copenhagen Hospitality College
- Croatian Amateur Radio Association
- Croatian Handball Federation
- HR (disambiguation)
- HRS antenna
- Head-Royce School
- Health and Retirement Study
- Heart Rhythm Society
- Helena Romanes School
- Hepatorenal syndrome
- Historical Records Survey
- Historical Social Research
- Hot Record Society
- Hours (disambiguation)
- House Rabbit Society
- Human Rights Service
- Hydraulics Research Station
- Rizieq Shihab
- Rockwell scale
- Sikorsky HRS