52 is a weekly American comic book limited series published by DC Comics that debuted on May 10, 2006, one week after the conclusion of the Infinite Crisis miniseries. The series was written by Geoff Johns, Grant Morrison, Greg Rucka, and Mark Waid, with layouts by Keith Giffen. 52 also led into a few limited series spin-offs.

52 consists of 52 issues, published weekly for one year, each issue detailing an actual week chronicling the events that took place during the missing year after the end of Infinite Crisis. The series covers much of the DC Universe, and several characters whose disparate stories interconnect. The story is directly followed by the weekly limited series Countdown to Final Crisis. It was the first weekly series published by DC Comics since the short-lived anthology Action Comics Weekly in 1988–1989.