Defender could mean any of the following:
- The Defender program of ship design.
- The Star Defender, a warship classification introduced by the New Republic.
- Defender, a Bakura-class destroyer.
- Defender, a Venator-class Star Destroyer
- Fell Defender, a ChissStar Destroyer.
- Loyal Defender, a Galactic Federation of Free Alliances warship.
- The Sabaoth Defender, a Clone Wars era starfighter.
- The TIE/D Defender, a starfighter produced by Sienar Fleet Systems during the Galactic Civil War.
- The Defender-Class Light Corvette, a Corelliancorvette used by the Jedi Order during the Great Galactic War.
- Defender Wing, a New Republic bomber wing.
- Fleet of the Glorious Defender Queen, a nickname for the Hapan Royal Navy.
- The Defender, a model of blaster manufactured by the Drearian Defense Conglomerate.
- The "Defender" deflector shield generator built by Chempat Engineered Defenses.
- The v-150 Planet Defender, a planetary ion cannon built by Kuat Drive Yards.
- Defender Droid, bodyguarddroids by Tendrando Arms.
- The Defender ion mine by Merr-Sonn Munitions, Inc.
- The Defenderlightsaber hilt used in the New Jedi Order.
- The 12 Defender MicroBlaster, a micro blaster.
- Ithorian defender armor
- KGDefender ion engine, an ion drive engine by KonGar Ship Works.
- Zemphyr Defenders, Incorporated, a manufacturer of anti-weapon devices.
- Defender of the Home Tree, an ancient Kashyyyk title.
- Defender of Kamparus, a title held by Sharad Hett.
- The Defender was a traditional role in Guiteica challenge by combat.
- Ring Defender, a Jensaarai occupation.