| Acronym | Definition |
|---|
| TOI | Times Of India |
| TOI | Time on Ice (Hockey Stat) |
| TOI | Time of Impact (physics) |
| TOI | T-Online (subsidiary of Deutsche Telekom AG) |
| TOI | Transportøkonomisk institutt (Institute of Transport Economics; Norway) |
| TOI | Tincture of Iodine (disinfectant) |
| TOI | Tales of Innocence (video game) |
| TOI | Timer Overflow Interrupt |
| TOI | Tissue Oxygenation Index |
| TOI | Third Order Intercept |
| TOI | Transfer Of Information (training session) |
| TOI | Type of Insurance |
| TOI | Topic Of Interest |
| TOI | Third-Order Intermodulation |
| TOI | Table of Isotopes |
| TOI | Target of Interest |
| TOI | Track of Interest |
| TOI | Threat of Islam (website) |
| TOI | Time Of Intercept |
| TOI | Total Operating Income (financial management) |
| TOI | Time of Injection |
| TOI | Treatment Outcome Index |
| TOI | Transfer Orbit Insertion (aeronautics) |
| TOI | Task Order Initiator |
| TOI | Term Of Induction |
| TOI | Technology Operations & Infrastructure |
| TOI | Trim on Installation |
| TOI | Target of Improvement |
| TOI | Table of Index |