DIOS
| Acronym | Definition |
|---|---|
| DIOS | District Inspector of Schools (India) |
| DIOS | Distributed Intelligent Operating System |
| DIOS | Desorption-Ionization on Silicon |
| DIOS | Durable Inorganic Optical System (liquid crystal display projection system) |
| DIOS | Distal Intestinal Obstructive Syndrome |
| DIOS | Direct Iron Ore Smelting |
| DIOS | Distributed Input/Output System |
| DIOS | Lesbian Degree of Involvement and Overtness Scale |