Superman: War of the Supermen is an American comic book limited series from DC Comics that serves as the culmination to the Superman line-wide event New Krypton. The series began on Free Comic Book Day 2010, with a zero-issue released free of charge before the main limited series began the following week.

"New Krypton" is a 2008–09 comic book story arc featuring character Superman, published by American company DC Comics; it was written by Geoff Johns, James Robinson and Sterling Gates, with art by Gary Frank, Alex Ross, Renato Guedes, Jamal Igle and Pete Woods. The arc is an inter-title crossover, published in Action Comics, Superman and Supergirl.