| Acronym | Definition |
|---|
| Rh | Rhesus factor |
| Rh | Relative Humidity |
| Rh | Right Hand |
| Rh | Ressources Humaines (French: Human Resources) |
| Rh | Reproductive Health |
| Rh | Robin Hood (KIVA algorithm) |
| Rh | Recursos Humanos (Portuguese) |
| Rh | Red Hot |
| Rh | Research Highlights |
| Rh | Rural Health (various locations) |
| Rh | Radiation Hybrid |
| Rh | Right Heart (cardiology) |
| Rh | Redhat Linux |
| Rh | Redhill (postcode, United Kingdom) |
| Rh | Rhodium |
| Rh | Radiohead (band) |
| Rh | Rush Hour |
| Rh | Republika Hrvatska (Republic of Croatia) |
| Rh | Restaurant Hospitality |
| Rh | Red Herring (magazine) |
| Rh | Renkus-Heinz (audio equipment; Foothill Ranch, CA) |
| Rh | Rechnungshof (Austrian auditing authority) |
| Rh | Rose-Hulman (College) |
| Rh | Rohm and Haas |
| Rh | Relative Hazard (statistics) |
| Rh | Running Hour |
| Rh | Rochester Hills |
| Rh | Red High |
| Rh | Southern Rhodesia |
| Rh | Remote Handled |
| Rh | Robert Hooke (discovered the cell by zooming in on a slice of cork) |
| Rh | Radiation Hardened |
| Rh | Row Hit (computer engineering) |
| Rh | Real Heroes (band) |
| Rh | Reheater |
| Rh | Radiation Hazard |
| Rh | Rear Heater |
| Rh | Regional Head |
| Rh | Road Head |
| Rh | Road Hog |
| Rh | Registered Herbalist |
| Rh | Receding Horizon (optimization technique) |
| Rh | Ressources Halieutiques (French: Fisheries resources) |
| Rh | Rubeus Hagrid (Harry Potter) |
| Rh | Radar Homing |
| Rh | Reentry Home (US DoD) |
| Rh | ROM Hacking |
| Rh | Robert Huth |
| Rh | Raffles Hall |
| Rh | Reaction History |
| Rh | Riza Hawkeye (Lieutenant in anime Fullmetal Alchemist) |
| Rh | Registered Healer (International Natural Healers Association) |
| Rh | Rice Hispa |
| Rh | Radar Head |
| Rh | Rolf Holstensson (chair retailer; Bodaford, Sweden; est. 1977) |
| Rh | Refined Hydrocarbon |
| Rh | Reported in the House of Representatives (bill status) |
| Rh | US Revenue Cigarette Tubes (Scott Catalogue prefix; philately) |
| Rh | Resnik House (Carnegie Mellon University) |