- DSSM stands for Decontamination System for Sensitive Material (Kaercher Futuretech; Germany)
- DSSM stands for Defense Superior Service Medal
- DSSM stands for Dansk Selskab for Søvnmedicin (Danish: Danish Society of Sleep Medicine)
- DSSM stands for Digital Spectral Satellite Map
- DSSM stands for Direct Sputum Smear Microscopy (diagnostic test)
- DSSM stands for Design for Six Sigma Manufacturing
- DSSM stands for Data Standards and Structures Manual
- DSSM stands for Dead Sea Scrolls on Microfiche
- DSSM stands for Deck Simulating Shock Machine (marine vessel testing)
DSSM