| OHMS | Oak Harbor Middle School 
| Others |
| OHMS | Occupational Health Management System
| Others |
| OHMS | Occupational Healthcare Management Services
| Others |
| OHMS | Offenham Horticultural Machinery Specialists
| Others |
| OHMS | Office of Hazardous Materials Safety
| Others |
| OHMS | Office of Hazardous Materials Standards
| Others |
| OHMS | Office of Hearings and Mediation Services
| Others |
| OHMS | Ohio Hystairical Musick Society
| Others |
| OHMS | Omron Health Management Software
| Others |
| OHMS | On Her Majesty s
| Others |
| OHMS | On Her Majesty Service
| Others |
| OHMS | On Her Majesty's Service
| Others |
| OHMS | On His Majesty s
| Others |
| OHMS | On His Majesty Service
| Others |
| OHMS | On His Majesty's Service
| Others |
| OHMS | On Hold Marketing Systems
| Others |
| OHMS | Online Health Management System
| Others |
| OHMS | Onondaga Hill Middle School
| Others |
| OHMS | Open Hardware Management Services
| Others |
| OHMS | Open House Management Solutions
| Others |
| OHMS | Oquirrh Hills Middle School
| Others |
| OHMS | Oral History Metadata
| Others |
| OHMS | Oral History Metadata Synchronizer
| Others |
| OHMS | Oral History Metadata Syncronizer
| Others |
| OHMS | Oregon Health Management Services
| Others |
| OHMS | Oregon Historical Modelers Society
| Others |
| OHMS | Oval Head Machine Screw
| Others |
| OHMS | Oxford Hills Middle School
| Others |