The third season of The Walking Dead, an American post-apocalyptic horror television series on AMC, premiered on October 14, 2012, and concluded on March 31, 2013, consisting of 16 episodes. Developed for television by Frank Darabont, the series is based on the eponymous series of comic books by Robert Kirkman, Tony Moore, and Charlie Adlard. It was executive produced by Kirkman, Glen Mazzara, David Alpert, and Gale Anne Hurd, with Mazzara as showrunner for his second and final season. The third season was very well received by critics. It was nominated for multiple awards and won two, including Best Syndicated/Cable Television Series, at the 39th Saturn Awards.

The Walking Dead is an American post-apocalyptic horror drama television series developed by Frank Darabont, based on the comic book series of the same name by Robert Kirkman, Tony Moore, and Charlie Adlard. Together, the show and the comic book series form the core of The Walking Dead franchise. The series features a large ensemble cast as survivors of a zombie apocalypse trying to stay alive under near-constant threat of attacks from zombies known as "walkers". With the collapse of modern civilization, these survivors must confront other human survivors who have formed groups and communities with their own sets of laws and morals, sometimes leading to open conflict between them. The series is the first television series within The Walking Dead franchise.