| STO | Pascal stub Object file 
| Others |
| STO | Safe Torque OFF
| Others |
| STO | Scania Transmission Oil
| Others |
| STO | Scheduled Time Off
| Others |
| STO | School Tuition Organization
| Others |
| STO | School Tuition Organizations
| Others |
| STO | Science and Technology Objective
| Others |
| STO | Science and Technology Organization
| Others |
| STO | Sebring Touring
| Others |
| STO | Secure Transport Object
| Others |
| STO | Security Through Obscurity
| Others |
| STO | Security Token Offering
| Others |
| STO | Security Token Offerings
| Others |
| STO | Segment Table Origin
| Others |
| STO | Self Test Output
| Others |
| STO | Sell To Open
| Others |
| STO | Sell To Operator
| Others |
| STO | Service du Travail Obligatoire
| Others |
| STO | Service To Others
| Others |
| STO | Shoveling Turds Outside
| Others |
| STO | Similar Tamarack Onto
| Others |
| STO | Slater Type Orbital
| Others |
| STO | Slater Type Orbitals
| Others |
| STO | Society for Translational Oncology
| Others |
| STO | Soldiers of the One
| Others |
| STO | Space Tornado Ogawa
| Others |
| STO | Speak To Owner
| Others |
| STO | Special Team Operations
| Others |
| STO | Special Technical Operations
| Others |
| STO | Special Touring Option
| Others |
| STO | Special Tournament Options
| Others |
| STO | Special Tournaments Options
| Others |
| STO | Spoke To Owner
| Others |
| STO | Spontaneous Time Off
| Others |
| STO | Sql Tuning Optimizer
| Others |
| STO | Stage To Orbit
| Others |
| STO | Standard Transfer Order
| Others |
| STO | Standard Travel Organisation
| Others |
| STO | Standing Take Over
| Others |
| STO | Star Trek Online
| Others |
| STO | Startthisoperation
| Others |
| STO | State The Obvious
| Others |
| STO | STAte Thespian Officer
| Others |
| STO | State Tourism Organisation
| Others |
| STO | State Trading Organization
| Others |
| STO | State Transfer Object
| Others |
| STO | Stating The Obvious
| Others |
| STO | Step Take Over
| Others |
| STO | Still The One
| Others |
| STO | Stitches Take Out
| Others |
| STO | Stock Transport Order
| Others |
| STO | Stockholm
| Others |
| STO | Stockholm, Sweden
| Others |
| STO | Store
| Others |
| STO | Stow
| Others |
| STO | Strategic Tactical And Operational
| Others |
| STO | Strategic Technology Office
| Others |
| STO | Strategic Technology Officer
| Others |
| STO | Stub Object File
| Others |
| STO | Student Tuition Organization
| Others |
| STO | Sunbeam Tigers Owners Club
| Others |
| STO | Super Taikyu Organization
| Others |
| STO | Super Trofeo Omologato
| Others |
| STO | Surgical Treatment Objective
| Others |
| STO | Survive To Operate
| Others |
| STO | Suture-To-Off
| Others |
| STO | Synch Timeout
| Others |
| STO | Synthetic Transmission Oil
| Others |
| STO | Systems Test Officer
| Others |
| STO | Tunisian Society of Ophthalmology
| Others |