N4 may refer to:
- N4, Gern Zott's droid
- N4, a zone on the Death Star
- N4-01, a Sith Empire astromech droid
- The N4-10 Exterminator, a Galactic Republic battle droid
- N4-3PO, Tol Pirilian's protocol droid
- N4-71, a utility droid
- N4-S4, an Imperial Reclamation Service protocol droid
- The N4-SW Runner, a Cold War battle droid model
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