| OMH | Oatmeal Milk and Honey 
| Others |
| OMH | Oatmeal Milk Honey
| Others |
| OMH | Office of Manufactured Housing
| Others |
| OMH | Office of Men's Health
| Others |
| OMH | Office of Mental Health
| Others |
| OMH | Office of Minority Health
| Others |
| OMH | Office of Multicultural Health
| Others |
| OMH | Oh my Harambe
| Others |
| OMH | Oh My Hat
| Others |
| OMH | Oh My Helena
| Others |
| OMH | Oh My Hogwarts
| Others |
| OMH | Oh My Hoid
| Others |
| OMH | Oh, My Heavens
| Others |
| OMH | Ohhh... My Head
| Others |
| OMH | Ohio Morel Hunter
| Others |
| OMH | Old Man Hustle
| Others |
| OMH | Old Modern Handicrafts
| Others |
| OMH | Old Mother Hubbard
| Others |
| OMH | Omdurman Maternity Hospital
| Others |
| OMH | On My Honor
| Others |
| OMH | Oncology Medical Home
| Others |
| OMH | Online Marketing Help
| Others |
| OMH | Online Marketing Hero
| Others |
| OMH | Online Marketing Heroes
| Others |
| OMH | Ontario Ministry of Health
| Others |
| OMH | Ontonagon Memorial Hospital
| Others |
| OMH | Open Market Handset
| Others |
| OMH | Open Market Handsets
| Others |
| OMH | Open Mutual Hatred
| Others |
| OMH | Opperman Music Hall
| Others |
| OMH | Oshawa Minor Hockey
| Others |
| OMH | Otsego Memorial Hospital
| Others |
| OMH | Outta My Hands
| Others |