HRV may refer to:
Medicine
- Heart rate variability
- Holmes' ribgrass virus
- Human rhinovirus
Companies, groups and organizations
- Harness Racing Victoria, statutory body
- Holden Racing Team, motorsports team
- AirInter1 (ICAO airline code: <code>HRV</code>), see List of defunct airlines of Chad
- Sahara Aero Services (ICAO airline code: <code>HRV</code>), see List of defunct airlines of Chad
Other uses
- Heat recovery ventilation
- Croatia (ISO 3166-1 alpha-3 code: <code>HRV</code>; )
- Croatian language (ISO 639-2 and ISO 639-3 codes <code>hrv</code>; )
- Honda HR-V, a sport utility vehicle
- HRV, a Rockwell scale of materials' hardness
- HRV, seismological station code for the Adam Dziewonski Observatory