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). As a supporting character, he acts as Bruce Wayne's business manager who apparently unknowingly runs the business interests that supply Batman's equipment needs as well as financing his operations.
CEO of Wayne Enterprises, Fox has the "Midas Touch", an ability to turn failing businesses into successful conglomerates. Fox is called in to the failing Wayne Enterprises and brings a balance to both Wayne's private and business finances. He also manages the particulars of the Wayne Foundation while Wayne dictates the organization's general policies. Since then, Fox has been approached time and time again by other companies seeking his expertise. After overcoming the original challenge of returning Wayne Enterprises to its glory, Fox has elected to stay, having been given an unparalleled freedom in the company.
In Batman: Haunted Knight, it is explained that Lucius Fox is rescued from muggers by a young Bruce Wayne in Paris. Later, Fox asks him if he wants to start a foundation for charity, to which Bruce agrees many years later, deciding that not all of his money has to go to crime fighting.