CZ-3 was a CZ-series secretary/business communications droid that was twinned with fellow CZ unit CZ-1 in service to members of the Stacchati species. After a crash in the deserts of Tatooine the two droids became separated and CZ-3 ended up in the spaceport of Mos Eisley. In 0 BBY, CZ-3 wandered through the spaceport's streets past the local moisture farmer Luke Skywalker and the Jedi Obi-Wan Kenobi after the pair had sold an X-34 landspeeder to the merchant Wioslea.
- Star Wars: Episode IV A New Hope (First appearance)
- Star Wars Costumes: The Original Trilogy (First identified as CZ-3)
- Star Wars: Build Your Own R2-D2 9 (Droid Directory: CZ-series Secretary/Business Communication Droid)
- Star Wars: The Complete Visual Dictionary, New Edition