| Acronym | Definition |
|---|
| OTA➣Office of Technology Assessment |
| OTA➣Occupational Therapy Assistant |
| OTA➣Over-The-Air |
| OTA➣Optical Tube Assembly (telescopes) |
| OTA➣Offer to Adopt |
| OTA➣Old Timers Association (various organizations) |
| OTA➣Organic Trade Association |
| OTA➣Organized Team Activities (football) |
| OTA➣Orthopaedic Trauma Association |
| OTA➣Office of Technical Assistance |
| OTA➣Open to All |
| OTA➣Orascom Telecom Algerie (est; 1998; various locations) |
| OTA➣Open Test Architecture |
| OTA➣Old Town Alexandria (Alexandria, VA) |
| OTA➣Organized Team Activity |
| OTA➣Overall Track |
| OTA➣over the Air |
| OTA➣Optical Transmit Asymmetry |
| OTA➣Office of the Telecommunications Adjudicator |
| OTA➣Oracle Training Administration |
| OTA➣Oxford Text Archive (UK) |
| OTA➣Operational Transconductance Amplifier |
| OTA➣Over-The-Air Management |
| OTA➣One Touch Access (Nokia) |
| OTA➣One Time Authentication |
| OTA➣OpenTravel Alliance |
| OTA➣Online Travel Agent |
| OTA➣Offseason Training Activities (US Football) |
| OTA➣Optical Trapping Applications |
| OTA➣Optical Telescope Assembly |
| OTA➣Office of Tax Analysis |
| OTA➣Oklahoma Turnpike Authority (Oklahoma City, OK) |
| OTA➣Orthodontic Technicians Association (UK) |
| OTA➣Online Trust Alliance (Bellevue, WA) |
| OTA➣Operational Test Agency |
| OTA➣Office of Tribal Affairs (Agency for Toxic Substances and Disease Registry) |
| OTA➣Office of Technology Assistance (US Congress) |
| OTA➣Out of the Air (pricing methodology) |
| OTA➣Office of the Administrator |
| OTA➣Original Total Annihilation |
| OTA➣Ontario Tennis Association |
| OTA➣Officer's Training Academy (India) |
| OTA➣Orchard Training Area |
| OTA➣Ordered to Appear (legal courts) |
| OTA➣Oceanside Tourism Association (Canada) |
| OTA➣On-Time Arrival |
| OTA➣Oklahoma Technology Administrators |
| OTA➣Ontario Telecommunications Association |
| OTA➣Open to Air (wound dressing) |
| OTA➣Older Than Average (student) |
| OTA➣Operational Transconductor Amplifier |
| OTA➣Operational Test Authority |
| OTA➣Oracle Transport Agent |
| OTA➣Ocean Systems Technician Analyst |
| OTA➣Office of Territorial Affairs |
| OTA➣Oil Technology Association |
| OTA➣Oregon Telephone Association |
| OTA➣Obligatory Thug Attack (gaming) |
| OTA➣Oracle Training Administrator/Administration |
| OTA➣Other Transactional Authority |
| OTA➣Officer Training Allowance |
| OTA➣Other Transactional Agreement |
| OTA➣Ordnance Transmission Assembly |
| OTA➣Optical Transition Amplitude |
| OTA➣Order to Acceptance (project management) |