Code 3

Code 3 may refer to:


 * Code 3 Collectibles, a scale model company
 * Code 3 Response, a response mode for emergency vehicles
 * Code-3 temporal pattern, a distinct evacuation tone pattern used primarily in fire alarms
 * Code 3 (film), an upcoming film starring Rainn Wilson
 * Code 3 (TV series), 1957 TV series produced at Hal Roach Studios
 * Code 3 in sailing: see spinnaker
 * Code 3, a documentary TV series following firefighters, hosted by Gil Gerard