DDIS
| Acronym | Definition |
|---|---|
| DDIS | Diesel Direct Injection System |
| DDIS | Dissociative Disorders Interview Schedule (mental health) |
| DDIS | Direct Drive Systems (electrical engineering firm; France) |
| DDIS | Diffractive Deep Inelastic Scattering (physics) |
| DDIS | Direct Diesel injection System |
| DDIS | Data Depository Index System (NASA) |
| DDIS | Departmental Deposit Information Sheet (Texas Tech) |
| DDIS | Darling Downs Internet Services (Gold Coast, Australia) |
| DDIS | Digital Document Information System |