IV could mean:
In-universe
- Form IV: Ataru, a lightsaber form which was used most notably by Yoda, Palpatine and Anakin Skywalker
- IV, a medical device used to administer drugs
Out-of-universe
- Celebration IV, a Star Wars event held in Los Angeles in 2007.
- Star Wars: Episode IV A New Hope, the first Star Wars film ever made and the fourth chronologically
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