THX, the prefix of the main character in George Lucas and Walter Murch's 1971 synonymous film, THX 1138, which was intended to allude to sex, may refer to the following items:
- Clone commandoColt gave orders to test Domino Squad in the Citadel Challenge in version variable .
- THX 1138, a landspeeder.
- , a model of droid.
- , 1138 of which played music at Hologram Fun World.
- , a terminal for Star Tours and other travel agencies
- , a docking bay situated within the spacecityNew Tayana.
- THX-1138', a stormtrooper also known as TK-421.
- , the Separatistbioweapon that devastated Honoghr.
- Clone commandoColt gave orders to test Domino Squad in the Citadel Challenge in version variable .
- -11-38 was the clearance code to dock on the Salvation.
- , a sound quality certification program and company that was created by George Lucas.
- , an article introducing the above program.