KJO
| Acronym | Definition |
|---|---|
| KJO | King James Only (controversy) |
| KJO | Korean Journal of Ophthalmology (South Korea) |
| KJO | Katholische Jugend Oldenburg (German: Catholic Youth Oldenburg; Oldenburg, Germany) |
| KJO | Krajowa Jednostka Oceny (Polish: National Evaluation Unit; Poland) |
| KJO | Kennemer Jeugd Orkest (Dutch: Kennemer Youth Orchestra) |
| KJO | Kuwait Joint Operation (oil industry) |