| R&H | Ride and Handling 
| Others |
| RH | Borland C++ or Visual C++ Resource header file
| Others |
| RH | Rachel Hollis
| Others |
| RH | Raden Haji
| Others |
| RH | Radiation Hybrid
| Others |
| RH | Radical Honesty
| Others |
| RH | Radio Heacock
| Others |
| RH | Radio Height
| Others |
| RH | Radiohead
| Others |
| RH | Radius Height
| Others |
| RH | Raging Homo Sapiens
| Others |
| RH | Rail Head
| Others |
| RH | Ranch Hauler
| Others |
| RH | Randolf Herman
| Others |
| RH | Random Harvest
| Others |
| RH | Range Hold
| Others |
| RH | Rare Hunter
| Others |
| RH | Ray Hine, P-38 pilot
| Others |
| RH | Really Hated
| Others |
| RH | Rebonded Hair
| Others |
| RH | Recombinant Human
| Others |
| RH | Recreational Homicide
| Others |
| RH | Recursos Humanos
| Others |
| RH | Red Hat
| Others |
| RH | Red Holloway
| Others |
| RH | Redhill postcode area
| Others |
| RH | Reduced Hazard
| Others |
| RH | Reentry Home
| Others |
| RH | Reference Height
| Others |
| RH | Regelia Hybrid
| Others |
| RH | Reginald Horace
| Others |
| RH | Regional Haul
| Others |
| RH | Registered Herbalist
| Others |
| RH | Regular and Honors
| Others |
| RH | Regulatory Hubris
| Others |
| RH | Reihenhaus
| Others |
| RH | Relative Humidity
| Others |
| RH | Relay Harness
| Others |
| RH | Releasing Hormone
| Others |
| RH | Remote Headlamp
| Others |
| RH | Remote Host
| Others |
| RH | Reproductive Health
| Medical |
| RH | Republic Express Airlines
| Others |
| RH | Research Hypothesis
| Others |
| RH | Residence Hall
| Others |
| RH | Resident Handbook
| Others |
| RH | Residential Home
| Others |
| RH | Resource Header
| Others |
| RH | Respective House
| Others |
| RH | Responsible Head
| Others |
| RH | Ressources Humaines
| Others |
| RH | Restoration Hardware
| Others |
| RH | Restricted Hierarchical
| Others |
| RH | Reverse Harem
| Others |
| RH | Reverse Holder
| Others |
| RH | Rhesus
| Medical, Biology |
| Rh | Rhesus factor
| Others |
| Rh | rheumatic
| Others |
| RH | Rhodium
| Element |
| RH | Rhythm Heaven
| Others |
| RH | Rich Herrick
| Others |
| RH | Richard Hoffmann
| Others |
| RH | Richmond Field Office
| Others |
| RH | Riemann Hypothesis
| Others |
| RH | Right Hand
| Others |
| RH | Right Handed
| Others |
| RH | Right Handed polarization
| Others |
| RH | Right Hemisphere
| Others |
| RH | Right Here
| Others |
| RH | Right Honorable
| Others |
| RH | Rigid Hull
| Others |
| RH | Ringenes Herre (movie)
| Others |
| RH | Roadside Hazard
| Others |
| RH | Robert Harold
| Others |
| RH | Robert Hassler
| Others |
| RH | Robert Hatton
| Others |
| RH | Robert Henry
| Others |
| RH | Robert Holmes
| Others |
| RH | Robin Hood
| Others |
| RH | Roger Hines
| Others |
| RH | Roller Head
| Others |
| RH | Roller Hockey
| Others |
| RH | Roman Halter
| Others |
| RH | Roman Holiday
| Others |
| RH | Ron Howard
| Others |
| RH | Root of Hedge
| Others |
| RH | Rose Hill
| Others |
| RH | Rosh Hashana
| Others |
| RH | Round Headlight
| Others |
| RH | Round House
| Others |
| RH | Rowland Hall
| Others |
| RH | Roy Hargrove, trumpeter
| Others |
| RH | Royal Highness
| Others |
| RH | Rubber Hood
| Others |
| RH | Rubeus Hagrid
| Others |
| RH | Rumex hymenosepalus
| Others |
| RH | Run Hour
| Others |
| RH | Running Head
| Others |
| RH | Russell Hays
| Others |
| RH | Ryan's Hope
| Others |