- DSIF stands for Dirty South Improve Festival
- DSIF stands for Deep Space Instrumentation Facility
- DSIF stands for Diplôme Spécial en Ingénierie Financière (French: Special Diploma in Financial Engineering; Tunisia)
- DSIF stands for Dynamic Stress Intensity Factor (mechanical engineering)
- DSIF stands for Defensive Systems Integration Facility
- DSIF stands for Department of Shooting Itself in the Foot
- DSIF stands for Distinguished Space Industry Fellows Program
- DSIF stands for DRB (Dichloro-1-ß-D-Ribofuranosylbenzimidazole) Sensitivity Inducing Factor (RNA)
DSIF