| Acronym | Definition |
|---|
| DECS | Department of Education and Children's Services (Australia) |
| DECS | Design, Engineering and Construction Services (Santa Fe Springs, CA) |
| DECS | Diesel Emissions Control Strategy |
| DECS | Department of Education, Culture and Sports (Filipino; Kagawaran ng Edukasyon, Kultura at Palakasan; Philippines) |
| DECS | Domino Enterprise Connection Services (Lotus) |
| DECS | Debt Exchangeable for Common Stock (investment product) |
| DECS | Defence Electronic Commerce Service (UK Ministry of Defence) |
| DECS | Diplôme d'Etude Comptable Supérieur (French: Diploma in Advanced Accounting) |
| DECS | Dion Eng Cheerleading School |
| DECS | Distributed Exact Cover Solver (distributed computing program, mathematics) |
| DECS | DSCS ECCM Control Subsystem |
| DECS | Dispatch Environmental Control System |
| DECS | Defense Electronics Control Service |
| DECS | Declaration Pages |
| DECS | Delphi Energy & Chassis Systems (formerly Saginaw Steering Gear, Saginaw, Michigan) |