| OTS | Anacortes, Washington USA 
| Others |
| OTS | O-Town Sound
| Others |
| OTS | Oasa Tamura Sugitani
| Others |
| OTS | Object Based Temporal Scalability
| Others |
| OTS | Object Transaction Service
| Others |
| OTS | Obvious, To Some
| Others |
| OTS | Occupational and Technical Studies
| Others |
| OTS | Occupational Therapy Student
| Others |
| OTS | Occupational Training & Supply, Inc.
| Others |
| OTS | Occupational Training and Supply
| Others |
| OTS | Occupational Training Services
| Others |
| OTS | Ocean Technology Systems
| Others |
| OTS | Ocean Therapy Solutions
| Others |
| OTS | Ocular Trauma Score
| Others |
| OTS | Off The Script
| Others |
| OTS | Off The Shelf
| Others |
| OTS | Off The Shits
| Others |
| OTS | Off The Shoulder
| Others |
| OTS | Off Tool Sample
| Others |
| OTS | Off-The-Shelf
| Others |
| OTS | Office of Technical Services
| Others |
| OTS | Office of Technology Services
| Others |
| OTS | Office of Technology Support
| Others |
| OTS | Office of Telecommunication Services
| Others |
| OTS | Office of Telecommunications Services
| Others |
| OTS | Office of Thrift Supervision
| Others |
| OTS | Office of Toxic Substances
| Others |
| OTS | Office of Traffic Safety
| Others |
| OTS | Office of Transport Security
| Others |
| OTS | Office of Trust Services
| Others |
| OTS | Officer Training
| Others |
| OTS | Officer Training School
| Others |
| OTS | Official Tournament
| Others |
| OTS | Official Tournament Store
| Others |
| OTS | Officials Tracking System
| Others |
| OTS | Oh The Sweatys
| Others |
| OTS | Oil Temperature Sensor
| Others |
| OTS | Oil Temperature Switch
| Others |
| OTS | Old Time Stuff
| Others |
| OTS | Old Turnpike School
| Others |
| OTS | Oligonucleotide Therapeutics Society
| Others |
| OTS | Olympic Training Site
| Others |
| OTS | OM TAT SAT Solutions PVT., LTD.
| Others |
| OTS | Omega Tau Sigma
| Others |
| OTS | Omen Of The Stars
| Others |
| OTS | Omologato Turismo Speciale
| Others |
| OTS | Omologato Turismo Spider
| Others |
| OTS | Omologato Turismo Sport
| Others |
| OTS | On The Shelf
| Others |
| OTS | On The Side
| Others |
| OTS | On The Spot
| Others |
| OTS | Onboard Train Scale
| Others |
| OTS | One Take Session
| Others |
| OTS | One Tight Slap
| Others |
| OTS | One Time Settlement
| Finance |
| OTS | One To Six
| Others |
| OTS | One Touch Setting
| Others |
| OTS | One Touch Support
| Others |
| OTS | One-Time Source
| Others |
| OTS | Only The Strong
| Others |
| OTS | Ontario Topless Sprint Cars
| Others |
| OTS | Opel Team Srbija
| Others |
| OTS | Open Technical Support
| Others |
| OTS | Open Technology Solutions
| Others |
| OTS | Open Testing Service
| Others |
| OTS | Open Text Summarizer
| Others |
| OTS | Open Theme Standard
| Others |
| OTS | Open Tibia Serwer
| Others |
| OTS | Open To Sky
| Others |
| OTS | Open To Space
| Others |
| OTS | Open Tourer Sportscar
| Others |
| OTS | Open Traffic Systems
| Others |
| OTS | Open Tube Stand
| Others |
| OTS | Open-Top Sports sedan
| Others |
| OTS | Operational Test Site
| Others |
| OTS | Operational Testing and Simulation
| Others |
| OTS | Operations Technical Support
| Others |
| OTS | Operations Training Solutions
| Others |
| OTS | Operator Training Simulator
| Others |
| OTS | Operator Training Solutions
| Others |
| OTS | Ophthalmology Technology Summit
| Others |
| OTS | Opportunity To See
| Others |
| OTS | Opportunity to Succeed
| Others |
| OTS | Optical Tracking System
| Others |
| OTS | Optical Transmission Section
| Others |
| OTS | Optical Transport Section
| Others |
| OTS | Optimal Truckload Spend
| Others |
| OTS | Optimized Thermal Systems
| Others |
| OTS | Orbital Test Satellite
| Others |
| OTS | Orbiter Transporter System
| Others |
| OTS | Order to shelf
| Others |
| OTS | Order Tracking System
| Logistics, Software |
| OTS | Order Typing Service
| Others |
| OTS | Ordnance and Tactical Systems
| Others |
| OTS | Ordo Templi Sensibilium
| Others |
| OTS | Ordus Templii Sensibilia
| Others |
| OTS | Organization for Tropical Studies
| Others |
| OTS | Organizational Technology Systems
| Others |
| OTS | Organized Track System
| Others |
| OTS | Orientale Tribal Style
| Others |
| OTS | Ottunar Thozhargal Sangam
| Others |
| OTS | Outback Sport
| Others |
| OTS | Output Tube Saturation
| Others |
| OTS | Outside The Square
| Others |
| OTS | Over Temperature Shutdown
| Others |
| OTS | Over The Shoulder
| Others |
| OTS | Over Top Snuggers
| Others |
| OTS | Overload Test Set
| Others |
| OTS | Overseas Transport System
| Others |
| OTS | Overseas Transport Systems
| Others |
| OTS | Oxford Traffic Strategy
| Others |
| OTS | oxygen attached Tosyl
| Others |