OTC

• Bol-Bérim Airport
• Irish National Opera
• Launch Control Center
• Microsoft Tape Format
• OTC (band)
• OTC Markets Group
• OTC Tool Company
• Oakwood Technology College
• Oceanside Transit Center
• Oct (disambiguation)
• Odenton Town Center
• Office of Transportation Cooperatives
• Officer in tactical command
• Officers' Training Corps
• Offshore Technology Conference
• Offworld Trading Company
• Ogilvie Transportation Center
• Ohio Turnpike Commission
• Okefenokee Technical College
• Oklahoma Tax Commission
• Oliver Typewriter Company
• One Thousand Children
• Open Text Corporation
• OpenType
• Order to cash
• Oregon Track Club
• Oriental Trading Company
• Ornithine transcarbamylase
• Oshkosh Truck Corporation
• Over-the-counter (finance)
• Over-the-counter drug
• Overlake Transit Center
• Overseas Telecommunications Commission
• Oxytetracycline
• Ozarks Technical Community College
• Roman Reigns
• Roy Campanella Occupational Training Center
• The Olivia Tremor Control
• United States Olympic Training Center