From Wikipedia, the free encyclopedia
DTT may refer to:
- Deutscher Terminologie-Tag, German Terminology Association, known by its German initials
- Double taxation treaty, a type of international agreement to mitigate the effects of double taxation on multinational businesses
- Digital terrestrial television
- Deloitte Touche Tohmatsu or DTT International, financial services firm
- Dithiothreitol or Cleland's reagent in chemistry
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