DSE

• Dominant strategy equilibrium, an economic term in game theory

• Dar es Salaam Stock Exchange
• Dhaka Stock Exchange, the main Stock Exchange of Dhaka, Bangladesh
• Damascus Securities Exchange, the main Stock Exchange of Damascus, Syria

• Discover Science & Engineering, an Irish Government initiative
• Department of Sustainability and Environment in Victoria, Australia
• Data Services Environment, a service of the Defense Information Systems Agency, United States

• Delhi School of Economics
• Disability Studies in Education
• Hong Kong Diploma of Secondary Education, an examination after completing secondary education in Hong Kong

• Dream Stage Entertainment, a Japanese company that promotes MMA and wrestling matches
• Dolphin South End Running Club, a San Francisco running club

• DSE (gene), human gene which codes for dermatan-sulfate epimerase
• Dobutamine Stress Echo, a cardiac stress test
• Dark septate endophytes, a group of fungi that are symbiotic within vascular plant roots
• Design space exploration, systematic analysis and pruning of unwanted design points based on parameters of interest
• Discrete skeleton evolution, an iterative approach to reducing a morphological or topological skeleton

• Dead Space: Extraction, a 2009 videogame available for the Nintendo Wii and the PlayStation 3
• Dick Smith Electronics, an electronics company

• Dimokratikos Stratos Elladas, the Greek Civil War Communist army ('Democratic Army of Greece')
• Dry Sheep Equivalent, a standard unit frequently used in Australia
• Combolcha Airport in Ethiopia
• Dr. Seuss Enterprises, a subsidiary of Penguin Random House for the works of author Dr. Seuss

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