| Acronym | Definition |
|---|
| OBC | Other Backward Classes |
| OBC | Oriental Bank of Commerce (India) |
| OBC | Original Broadway Cast |
| OBC | Ontario Building Code |
| OBC | Oriental Bird Club |
| OBC | Original Bedstead Company (UK) |
| OBC | Online Booty Call (website) |
| OBC | On Board Computer |
| OBC | Organization for Bat Conservation |
| OBC | Outline Business Case (UK government procurement) |
| OBC | On Board Credit (cruise industry) |
| OBC | Officer Basic Course |
| OBC | Original Birth Certificate |
| OBC | Order of British Columbia |
| OBC | Ocean Bottom Cable |
| OBC | Outside Back Cover |
| OBC | One Button Checkup (Norton Utilities) |
| OBC | Obscured by Clouds (Pink Floyd album) |
| OBC | Outer Banks Conservationists |
| OBC | Online Business Center |
| OBC | Overseas Briefing Center |
| OBC | Overseas Basing Commission |
| OBC | Office of Bar Counsel |
| OBC | Optical Bar Camera |
| OBC | Open Bible Church |
| OBC | Outside Broadcast |
| OBC | Outbound Call (call centers) |
| OBC | Out of Band Control |
| OBC | Outboard Boating Club |
| OBC | Orange Belt Conference |
| OBC | Onslaught Block Constructed (gaming) |
| OBC | Old Boy's Club |
| OBC | Open Birth Certificates (adoption) |
| OBC | Obligations à Bon de Conversion |
| OBC | Organic and Biochemistry |
| OBC | Oakmont Booster Club (Ashburnham, MA) |
| OBC | Overhead Bridge Crane |
| OBC | Officer Billet Code |
| OBC | Operating Budget Committee |
| OBC | Open Building Control (Italy) |
| OBC | On-Orbit Calibrator |
| OBC | Organização de Base Comunitária (Portuguese: Community Based Organization) |
| OBC | Outrageous Builder's Club (gaming) |
| OBC | Oostzaanse Bridge Club (Amsterdam, Netherlands) |
| OBC | Off-Boresight Compensation |
| OBC | Optical Bench Enclosure (NASA) |
| OBC | Oracle Business Component |
| OBC | Ossa Bene Cubent (Latin: The Bones Rest Well, epigraphy) |
| OBC | original brats creations |
| OBC | Oxford and Bermondsey Club (UK) |
| OBC | Organically Bound Chlorine |
| OBC | O'neil, Bothun and Cornell |
| OBC | Orange Bowl Committee (est. 1935) |
| OBC | O2 Binding Curve |
| OBC | Oregon Burn Center (Portland, OR) |
| OBC | Operation Boot Camp (fitness; various locations) |
| OBC | Online Bible College |