"The Greatest Hero of Them All" is a story arc that was published by DC Comics, and presented in Superman vol. 2, #8, Action Comics #591, and Legion of Super-Heroes vol. 3, #37–38 from August through September 1987. It was written by Paul Levitz and John Byrne, and pencilled by Byrne, Greg LaRocque and Mike DeCarlo. The story arc was DC’s first attempt to correct the inconsistencies in Legion history created when the original Superboy was removed from mainstream DC continuity in the Man of Steel limited series.