- DSEG stands for Data Segment (assembly language directive)
- DSEG stands for Digital Signage Experts Group
- DSEG stands for Defense Systems and Electronics Group
- DSEG stands for Dynamic Sports and Entertainment Group (Australia)
- DSEG stands for Disciplinary Segregation (prisons)
- DSEG stands for Da Silva Entreprise Générale (French general contractor)
- DSEG stands for Defense Systems Evaluation Group
- DSEG stands for Dan Sandys Entertainment Group (Maryland)
- DSEG stands for Department of Social and Economic Geography (Lund University; Sweden)
- DSEG stands for Distributed Software Engineering Group
DSEG