- ACSAC stands for Annual Computer Security Applications Conference
- ACSAC stands for Asian Crop Science Association Conference
- ACSAC stands for Association contre la Spondylarthrite Ankylosante et ses Conséquences
- ACSAC stands for Association of Commonwealth Societies of Architects in the Caribbean
- ACSAC stands for Ancient Ceramics Scientific Authentication Centre (Hong Kong)
- ACSAC stands for Ashby Castle Sub Aqua Club (est. 1997; UK)
- ACSAC stands for Assistant Chief of Staff for Automation and Communication
ACSAC