The Legend of Korra (abbreviated as TLOK and also known as Avatar: The Legend of Korra or more rarely simply as Korra) is an American animated fantasy action drama television series created by Michael Dante DiMartino and Bryan Konietzko for Nickelodeon. It is a sequel to their previous series Avatar: The Last Airbender (2005–2008), and ran for 52 episodes ("chapters") across four seasons ("books") from April 14, 2012, to December 19, 2014. It has since continued as a comic book series.

Like its predecessor, the series is set in a fictional universe where certain people can telekinetically manipulate, or "bend", one of the four elements: water, earth, fire, or air. Only one individual, the "Avatar", can bend all four elements, and is responsible for maintaining balance in the world. The series follows Avatar Korra, the successor and reincarnation of Aang from the previous series, as she faces political and spiritual unrest in a modernizing world.

The main characters are voiced by Janet Varney, Seychelle Gabriel, David Faustino, P. J. Byrne, J. K. Simmons and Mindy Sterling, and supporting voice actors include Aubrey Plaza, John Michael Higgins, Kiernan Shipka, Lisa Edelstein, Steve Blum, Eva Marie Saint, Henry Rollins, Anne Heche, and Zelda Williams. Some of the people who worked on Avatar: The Last Airbender (including designer Joaquim Dos Santos, writers Joshua Hamilton and Tim Hedrick, composer Jeremy Zuckerman and sound designer Benjamin Wynn) returned to work on The Legend of Korra.

The Legend of Korra has received critical acclaim, with praise for its writing and production values, and has been nominated for and won awards such as the Annie Awards, a Daytime Emmy Award, and a Gracie Award. The series was also praised for addressing sociopolitical issues such as social unrest and terrorism, as well as for going beyond the established boundaries of youth entertainment with respect to issues of race, gender, and sexual orientation. The series' final scene, intended to depict the beginning of a same-sex romance between Korra and Asami Sato, was unprecedented at the time and has been credited with paving the way for LGBT representation in children's television.