| OH | Hydroxide 
| Others |
| OH | Hyroxide ion
| Others |
| OH | Oak Harbor
| Others |
| OH | Oak Hill
| Others |
| OH | Obese Hypertensive
| Others |
| OH | Object Holder
| Others |
| OH | Observation Helicopter
| Others |
| OH | Occupational History
| Others |
| OH | Occutpational Hazards
| Others |
| OH | Ocular Health
| Others |
| OH | Off Hand
| Others |
| OH | Off Hook
| Others |
| OH | Office Hour
| Others |
| OH | Office Hours
| Others |
| OH | Ohio
| State |
| OH | Old Hickory
| Others |
| OH | Olympic Hopefuls
| Others |
| OH | On Hand
| Others |
| OH | On Hold
| Others |
| OH | One Handed
| Others |
| OH | Only Health
| Others |
| OH | Open Heart
| Others |
| OH | Open Hearts
| Others |
| OH | Open House
| Others |
| OH | Oracle Help
| Others |
| OH | Oracle Home
| Others |
| OH | Oral History
| Others |
| OH | Oral Hygiene
| Others |
| OH | Order History
| Others |
| OH | Organized Home
| Others |
| OH | Original Hamster
| Others |
| OH | Original Hostage
| Others |
| OH | Orthopaedically Handicapped
| Others |
| OH | Orthopedically Handicapped
| Others |
| OH | Orthostatic Hypotension
| Others |
| OH | Osteopathic Hospital
| Others |
| OH | Other Half
| Others |
| OH | Our Hero
| Others |
| OH | Out House
| Others |
| OH | Outdoor Happiness
| Others |
| OH | Outside Hitter
| Others |
| OH | Over Hang
| Others |
| OH | Over Heat
| Others |
| OH | OverHauled
| Others |
| OH | Overhead
| Others |
| OH | OverHeard
| Others |
| OH | Oxygen And Hydrogen
| Others |
| OH | Ozone House
| Others |