| Acronym | Definition |
|---|
| SDIS | Service Départemental d'Incendie et de Secours (French: Departmental Service of Fire and Rescue) |
| SDIS | Switched Digital Integrated Service |
| SDIS | Satellite Digital Imaging System (Civil Air Patrol) |
| SDIS | Switched Digital Integrated Service (FTS2000) |
| SDIS | Speech Driven Information System |
| SDIS | Skill Development Initiative Scheme (Directorate General of Employment and Training; Ministry of Labour and Employment; India) |
| SDIS | SIMNET Database Interchange Specification |
| SDIS | Sunman Dearborn Intermediate School (West Harrison, IN) |
| SDIS | Single Digit Identification System |
| SDIS | SD Information Services (UK management consultant) |
| SDIS | Service Department Information System (UK) |