DIAC (disambiguation)
# DIAC (disambiguation)

DIAC is a four-letter acronym that may stand for:

* DIode for Alternating Current, a bidirectional trigger diode
* Department of Immigration and Citizenship, an Australian government department
* Dental Industry Association of Canada
* Disability Information & Advice Centre, a British charity
* Design Industry Advisory Committee
* Defense Intelligence Analysis Center, the former name of the Defense Intelligence Agency Headquarters
* Dubai International Academic City
