KOI
| Acronym | Definition |
|---|---|
| KOI | Kepler Object of Intrest (astronomy) |
| KOI | Kernel Object Interface |
| KOI | Kentucky Office of Insurance |
| KOI | Kirkwall / Orkney Island, Scotland, United Kingdom Kirkwall (Airport Code) |
| KOI | Key Outcome Indicator |
| KOI | Kentucky-Ohio-Indiana |
| KOI | Kingdom of Insanity (game site) |
| KOI | Koderovka Obmyena Informatsee (Coded Information Exchange; Russian Standard) |