Zax Omega is a fictional pop culture character repeatedly referenced in the novel number9dream.

In the novel, Eiji Miyake imagines being a type of spy who talks his way into the office of the attorney Akiko Katō in an effort to get her to hand over her file on Miyake’s father. When he reveals his identity to her, she is dumbfounded, and sarcastically asks “Not Luke Skywalker? Not Zax Omega?”