Lucius Fox is a fictional character appearing in Batman comic books by DC Comics. He was created by Len Wein and John Calnan , and first appeared in Batman #307 (January 1979).

CEO of Wayne Enterprises, Fox has the "Midas Touch", an ability to turn failing businesses into successful conglomerates. When Bruce Wayne's personal holdings were poorly managed, Fox was called in and brought a balance to both Wayne's private and business finances.

Many stories allude to Fox knowing the secret identity of the Batman, yet he is of a noble personality.

Lucius Fox was voiced by Brock Peters in Batman: The Animated Series. He will be played by Morgan Freeman in the film Batman Begins of 2005.