- DASI stands for Degree Angular Scale Interferometer
- DASI stands for Duke Activity Status Index (cardiac disease questionnaire)
- DASI stands for Diffusion des Arts et des Savoirs par l’Image (French: Diffusion of Arts and Knowledge Through the Image; Lumière University Lyon 2; France)
- DASI stands for Defence and Systems Institute (Australia)
- DASI stands for Digital Altimeter Setting Indicator
- DASI stands for Dial Access Signaling Interface
- DASI stands for Diversified Aero Services, Inc. (Miami, FL; est. 1993)
- DASI stands for Domestic Abuse and Sexual Assault Intervention Services (Newton, NJ)
- DASI stands for Distributed Array of Small Instruments (space weather research)
- DASI stands for Dial Access Service Interface
- DASI stands for Development Agency for Social Improvement (India)
- DASI stands for Devotees Associating with Spiritual Intent (religious group)
- DASI stands for Dutch Australian Society, Illawarra (est. 1952; Australia)
DASI