| OSM | Oberlin Sexual Minorities 
| Others |
| OSM | Object for Spatial Manipulation
| Others |
| OSM | Object of Spatial Manipulation
| Others |
| OSM | Object Space Man
| Others |
| OSM | Object Space Manager
| Others |
| OSM | Object Space Modifier
| Others |
| OSM | Object-Oriented Systems Modeling
| Others |
| OSM | Obra Social el Martinico
| Others |
| OSM | Observations in Slow Motion
| Others |
| OSM | Ocean Sciences Meeting
| Others |
| OSM | Ocotillo Street Machines
| Others |
| OSM | Off Screen Model
| Others |
| OSM | Off Site Manufacturing
| Others |
| OSM | Office of Spectrum Management
| Others |
| OSM | Office of Strategy Managment
| Others |
| OSM | Office of Surface Mining
| Others |
| OSM | Officially Slightly Mad
| Others |
| OSM | Oh Sh*t Moment
| Others |
| OSM | Ohana Seafood Market
| Others |
| OSM | Old School Musical
| Others |
| OSM | On Screen Menu
| Others |
| OSM | On Site Maintenance
| Others |
| OSM | On Site Management
| Others |
| OSM | On Snow Magazine
| Others |
| OSM | Onboard Storage Management
| Others |
| OSM | OncoStatin M
| Others |
| OSM | One Sheet Model
| Others |
| OSM | One Square Meal
| Others |
| OSM | Online Salary Management
| Others |
| OSM | Online Scout Manager
| Others |
| OSM | Online Service Manual
| Others |
| OSM | Online Soccer Manager
| Others |
| OSM | Online System Manager
| Others |
| OSM | Ontario Sheet Metal
| Others |
| OSM | Opal Sage Metallic
| Others |
| OSM | Open Science Meeting
| Others |
| OSM | Open Shot Misses
| Others |
| OSM | Open Source Malaria
| Others |
| OSM | Open Source Management
| Others |
| OSM | Open Source Mano
| Others |
| OSM | Open Source Matters
| Others |
| OSM | Open Source Media
| Others |
| OSM | Open Source Middleware
| Others |
| OSM | Open Source Migrations
| Others |
| OSM | Open Standard Media
| Others |
| OSM | Open Street Map
| Others |
| OSM | Open Street Map or OpenStreetMap
| Others |
| OSM | Open Street Maps
| Others |
| OSM | Open Study Model
| Others |
| OSM | Open Study Models
| Others |
| OSM | Open System Management
| Others |
| OSM | OpenStreetMap (http://www.openstreetmap.org)
| Others |
| OSM | Operating System Memory
| Others |
| OSM | Operating System Service Module
| Others |
| OSM | Operation Status Monitoring
| Others |
| OSM | Operational Staff Meeting
| Others |
| OSM | Optical Scroll Mouse
| Others |
| OSM | Optical Services Module
| Others |
| OSM | Optical Storage Manager
| Others |
| OSM | Optiswitch Master
| Others |
| OSM | Optivity Switch Manager
| Others |
| OSM | Orbital Service Module
| Others |
| OSM | Order Of Saint Michael
| Others |
| OSM | Order of St Michael
| Others |
| OSM | Original Storage Manufacturer
| Others |
| OSM | Out of Sequence Mode
| Others |
| OSM | Outlook Security Manager
| Others |
| OSM | Output State Monitor
| Others |
| OSM | Output Switch Matrix
| Others |
| OSM | Ship Management
| Others |