| Acronym | Definition |
|---|
| OTC➣Over The Counter (stocks) |
| OTC➣Over The Counter (medications not requiring a prescription) |
| OTC➣Offshore Technology Conference |
| OTC➣Ozarks Technical Community College (Springfield, MO) |
| OTC➣Outside the Classroom (est. 2000; Boston, MA) |
| OTC➣Over the Cable |
| OTC➣Oriental Trading Company |
| OTC➣Off the Chain |
| OTC➣Open Text Corporation |
| OTC➣Office of Technology Commercialization (various locations) |
| OTC➣Oregon Track Club |
| OTC➣On The Contrary |
| OTC➣One Touch Cappuccino (Saeco) |
| OTC➣Office des Transports du Canada (Canadian Transportation Agency) |
| OTC➣Oxytetracycline (calcium complex) |
| OTC➣Olympic Training Center |
| OTC➣Ozone Transport Commission |
| OTC➣Original Trilogy Collection (Star Wars) |
| OTC➣Office of Teacher Certification (various schools) |
| OTC➣One-Time Charge |
| OTC➣Oklahoma Tax Commission (Oklahoma) |
| OTC➣Officers' Training School (US Navy) |
| OTC➣Ornithine Transcarbamylase |
| OTC➣Order To Cash |
| OTC➣One Thousand Children (Holocaust survival) |
| OTC➣One Time Cost |
| OTC➣Out of The Closet |
| OTC➣over the Cell |
| OTC➣Operations Technical Center |
| OTC➣Office of Technical Cooperation (various locations) |
| OTC➣L-2-Oxothiazolidine-4-Carboxylic Acid (pharmacology) |
| OTC➣Oregon Transportation Commission |
| OTC➣Olivia Tremor Control (band) |
| OTC➣Officer Training Corps |
| OTC➣Olney Theatre Center (Olney, MD) |
| OTC➣Overseas Telecommunications Commission |
| OTC➣Operational Test Command (US Army; formerly Test and Experimentation Command) |
| OTC➣Ornithine Carbamoyltransferase |
| OTC➣Operations Training Center (various locations) |
| OTC➣Opportunity to Correct |
| OTC➣Off the Chart (radio) |
| OTC➣Office of Tobacco Control (Ireland) |
| OTC➣Online Travel Company |
| OTC➣Office of Telecommunications |
| OTC➣Off The Clock |
| OTC➣Oriental Timber Company |
| OTC➣Once-Through Cooling (power plant treatment) |
| OTC➣One Team Conference |
| OTC➣Old Timers Club |
| OTC➣Order to Show Cause (civil law) |
| OTC➣Old Testament Challenge |
| OTC➣Old Town Coffee (cofee shops; various locations) |
| OTC➣On the Chip |
| OTC➣Other than Conscious Mind (psychology) |
| OTC➣Osaka Titanium Technologies (Japan) |
| OTC➣One Texas Center (Austin, TX) |
| OTC➣Ohio Turnpike Commission |
| OTC➣Other than Caucasian (classification) |
| OTC➣Oshkosh Truck Corporation |
| OTC➣Oncology Treatment Center (various locations) |
| OTC➣Officer in Tactical Command |
| OTC➣Online Travel Corporation |
| OTC➣Out There Clothing |
| OTC➣Orbiter Test Conductor (US NASA) |
| OTC➣Other Than Collision (insurance term meaning comprehensive coverage) |
| OTC➣Omaha Truck Center (various locations) |
| OTC➣Ohio Trust Code |
| OTC➣Okefenokee Technical College |
| OTC➣Open Track Challenge (racing) |
| OTC➣Organic Theater Company (Chicago, IL) |
| OTC➣Owatonna Tool Company (Owatonna, MI) |
| OTC➣Operating Telephone Company |
| OTC➣Output Technology Corporation |
| OTC➣Open Theological College (UK) |
| OTC➣Object Technology Center (Conference) |
| OTC➣Open Topped Container (logistics) |
| OTC➣Olivos Tenis Club |
| OTC➣Ogemaw Telephone Company (Michigan) |
| OTC➣Office Technology Center |
| OTC➣Output Transformer Coupled (amps) |
| OTC➣Ontario Teacher's Certificate (Canada) |
| OTC➣On Tape Catalog |
| OTC➣Okinawa Tele Message (Japan) |
| OTC➣Open Technology Centre (UK) |
| OTC➣Oregon Trail Council (Boy Scouts of America; Eugene, OR) |
| OTC➣Organ Transplant Center |
| OTC➣Out to Court |
| OTC➣Orlando Tech Center (Florida) |
| OTC➣Outsourcing Technology and Commercial (legal department) |
| OTC➣Ottawa Tool Company |
| OTC➣Operational Test Coordinator (US Navy) |
| OTC➣Ottawa Torah Center |
| OTC➣Organic Toxic Compound |
| OTC➣On Target Commission |
| OTC➣Ordnance Training Command |
| OTC➣On-Scene Tactical Commander |
| OTC➣Offsite Training Center |
| OTC➣Online Technology Consortium |
| OTC➣Ouaticha Technical College (Malvern, Arkansas) |
| OTC➣Operational Training Capability |
| OTC➣On the Cool |