- DTAA stands for Double Taxation Avoidance Agreement (India)
- DTAA stands for Division of Trade Adjustment Assistance (US DOL)
- DTAA stands for Dance, Theatre, & Arts Administration (Akron, OH)
- DTAA stands for Diffusion Technique et Application Audio Visuelle (French: Audio Visual Technology and Application Distribution)
- DTAA stands for Dance-Movement Therapy Association of Australia (Victoria, Australia)
- DTAA stands for Descending Thoracic Aortic Aneurysm (radiology)
- DTAA stands for Delts Talking about Alcohol (Delta Tau Delta fraternity)
- DTAA stands for Diversional Therapy Association of Australia
DTAA