CRAC

CRAC might refer to:


 * The CRAC-II "Calculation of Reactor Accident Consequences" study.
 * A castle, as in Krak des Chevaliers.
 * A Computer Room Air Conditioner.
 * Clube Recreativo e Atlético Catalano, a Brazilian football (soccer) club commonly known as CRAC
 * Clube Recreativo Atlético Campoverdense, a Brazilian football (soccer) club commonly known as CRAC
 * Chinese Radio Amateurs Club, China Radio Association Amateur Radio Working Committee, Amateur Radio Club in China commonly known as CRAC
 * Chisholm Residents Activity Club, a social club for residents of Chisholm College, which provides accommodation for students at La Trobe University
 * Cholesterol recognition amino acid consensus sequence
 * Crac, a 1981 Oscar-winning animated short film
 * Calcium Release Activated Channels, ion channels in cell membrane
 * Closed Reduction And Cast, an orthopaedic surgical procedure