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), a 2024 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