| OMB | Obtuse Marginal Branch 
| Others |
| OMB | of Management and Budget
| Others |
| OMB | Office and Management and Budget
| Others |
| OMB | Office of Management and
| Others |
| OMB | Office of Management and Budget
| Agency, Government |
| OMB | Office Of Management Budget
| Others |
| OMB | Office of Managing the Boo
| Others |
| OMB | Office of Managing the Bootay
| Others |
| OMB | Official Message Board
| Others |
| OMB | Officine Meccaniche Brescia
| Others |
| OMB | Officine Meccaniche Burato
| Others |
| OMB | Offset Multi Bracket
| Others |
| OMB | Offshore Model Basin
| Others |
| OMB | Oh My Bachelor
| Others |
| OMB | Oh My Bacon
| Others |
| OMB | Oh My Balls
| Others |
| OMB | Oh My Barley
| Others |
| OMB | Oh my Bieber
| Others |
| OMB | Oh My Bod
| Others |
| OMB | Oh, My Bad
| Others |
| OMB | Oil My Body
| Others |
| OMB | Olde Mecklenburg Brewery
| Others |
| OMB | Olympia Master Builders
| Others |
| OMB | Omboue, Gabon
| Others |
| OMB | Omega Brougham
| Others |
| OMB | On Market Boston
| Others |
| OMB | On My Block
| Others |
| OMB | On My Break
| Others |
| OMB | On My Butt
| Others |
| OMB | One Man Band
| Others |
| OMB | One Mand Band
| Others |
| OMB | One More Bowl
| Others |
| OMB | Only My Brothers
| Others |
| OMB | Only My Brothers - Oroville Mono Boys
| Others |
| OMB | Ontario Municipal Board
| Others |
| OMB | Open Multi Boot
| Others |
| OMB | Opening Music Billboard
| Others |
| OMB | Operations and Maintenance Branch
| Others |
| OMB | Operations Management Branch
| Others |
| OMB | Oracle Message Broker
| Others |
| OMB | Oracle Meta Base
| Others |
| OMB | Order Management Booking
| Others |
| OMB | Order Management Bookings
| Others |
| OMB | Oregon Medical Board
| Others |
| OMB | Originating Message Buffer
| Others |
| OMB | Oroville Mono Boys
| Others |
| OMB | Outdoor Mini Box
| Others |
| OMB | Outgoing Message Buffer
| Others |
| OMB | Owner-Managed Business
| Others |