- DTSU stands for Diplôme de Technicien Supérieur d’Université (French: Higher Technician University Diploma)
- DTSU stands for Développement du Transport Sanitaire et de l’Urgence (French: Development of Health and Emergency Transport; ambulances)
- DTSU stands for Douglasdale Trauma Support Unit (South Africa)
- DTSU stands for Diplôme de Technicien Superieur (French)
- DTSU stands for Debug Tool Setup Utility (IBM)
DTSU