| Acronym | Definition |
|---|
| MOB | Mobilization/Mobilize/Mobility |
| MOB | Monster (Everquest slang) |
| MOB | Mobile (gaming) |
| MOB | Mobile Phone |
| MOB | Mother of the Bride |
| MOB | Mobility |
| MOB | Management of Business (Caribbean Advanced Proficiency Examination) |
| MOB | Maison Ossature Bois (French: Wood Frame House) |
| MOB | Medical Office Building |
| MOB | Member of the Board |
| MOB | Mission of Burma (band) |
| MOB | Make or Break |
| MOB | Macedonian Opera and Ballet |
| MOB | Mail Order Bride |
| MOB | Men of Business (music group) |
| MOB | Morbidly Obese |
| MOB | Months on Book (finance) |
| MOB | Memorandum of Bailment |
| MOB | Magyar Olimpiai Bizottság (Hungarian: Hungarian Olympic Comittee) |
| MOB | Memory Order Buffer |
| MOB | Media Object |
| MOB | Managed Object Browser |
| MOB | Managed Object Broker |
| MOB | Ministry of Burlesque (est. 2000) |
| MOB | Man Over Board |
| MOB | Medical Oncology Branch (National Cancer Institute) |
| MOB | Marching Owl Band (Rice University, Houston, TX) |
| MOB | Marks on Belt (Xerox) |
| MOB | Mobile Object |
| MOB | Main Operating Base |
| MOB | Month of Birth |
| MOB | Minority Owned Business |
| MOB | Main Operations Base (US DoD) |
| MOB | Mother of the Baby |
| MOB | Make or Buy |
| MOB | Money Over Bitches (Tupac Shakur) |
| MOB | Mind Own Business |
| MOB | Minnesota Organization of Bloggers |
| MOB | Movable Object Block (computer graphics) |
| MOB | Mothers Opposing Bush |
| MOB | Miserable Old Bugger (UK) |
| MOB | Meals on Board (travel industry) |
| MOB | Maintenance of Benefits |
| MOB | Mobile Operating Business |
| MOB | Mission on Blast Clothing (est. 2003) |
| MOB | Member of Bloods (gang) |
| MOB | Mail-Order Buyer |
| MOB | Municipals Over Bonds (Index) |
| MOB | Mobile, AL, USA - Mobile Municipal (Airport Code) |
| MOB | Maintenance of Business |
| MOB | Middle of Book (aka the well; magazine publishing) |
| MOB | Monster or Beast (gaming, MMORPG) |
| MOB | Motor Outbound (oil and gas industry) |
| MOB | Missile Order of Battle |
| MOB | Mean Old Bastards (gaming clan) |
| MOB | Method of Build |
| MOB | Management Oversight Board |
| MOB | Monster Owners Belgium |
| MOB | Mouvement pour l'Organisation de la Bretagne (French: Movement for the Organization of Britain; est. 1957) |
| MOB | Mobile Off-shore Base |
| MOB | Moose on Bikes (Motorcycle Club) |
| MOB | Mighty Owl Band (Garland HS, Texas) |
| MOB | Maryland Old Boys (Rugby Union Football Club, Maryland) |
| MOB | Maritime Order of Battle |
| MOB | Main Optical Bench |
| MOB | Main Office Box (US Postal Service) |
| MOB | Mint Out of Box |
| MOB | Money Order Branch (various nations) |
| MOB | Martin, Ockerman & Brabant (law firm) |
| MOB | Management Operation Bridge |
| MOB | Multimedia Outlet Box |
| MOB | Miscellaneous Objectives Bureau (Fiction, James Bond) |