D4 (disambiguation)

D4 may refer to:
==Canon==
*D4L1, a droid owned by Xira
*D4-R4B, an R4 astromech droid
*Dee-Four, a rebel protocol droid
==Star Wars Legends==
*D4, an astromech droid
*D4-N7, a droid that lived on Tatooine
*D4-V3 Astromech Droid, an astromech droid model