- DTAS stands for Digitas Inc. (stock symbol)
- DTAS stands for Development Trusts Association Scotland (est. 2003; UK)
- DTAS stands for Délégation Territoriale d’Action Sociale (French: Territorial Delegation for Social Action)
- DTAS stands for Deployed Theater Accountability Software
- DTAS stands for Decision Theory Adaptive Systems Group
- DTAS stands for Digital Test Access System (Hekimian)
- DTAS
- DTAS stands for Depressed Towed Array Sonar
- DTAS stands for Dynamic Take and Secure (gaming)
- DTAS stands for Data Transmission and Switching
- DTAS stands for Distributed Telephony Architecture System
- DTAS stands for Deutsche Telekom Advanced Solutions (Deutsche Telekom AG)
- DTAS stands for Donald Trump Alarm System
DTAS