The following is a list of fictional characters from the Danish-Canadian animated television series Ninjago and its sequel, which were produced by The Lego Group. The series features a large ensemble cast of recurring characters. The list includes the main protagonists, major and minor villains and other supporting characters that have appeared within the Ninjago universe. The list is mainly organised into groups of fictional beings based on the chronological order of season release.
Ninjago focuses on a group of six teenage ninja, named Lloyd Garmadon, Kai, Cole, Jay, Zane and Nya, and their wise sensei, Master Wu. The ninja team's purpose is to battle against the forces of evil, including Wu's brother, Lord Garmadon. The series is mainly set on Ninjago Island, centred around the large metropolis of Ninjago City, which is inhabited by a large cast of supporting characters and villains, such as Nindroid armies and ghosts. The series was created to coincide with the Lego Ninjago line of construction toys, which is based on the characters and events of the series. It was created by Michael Hegner and Tommy Andreasen, two Danish film producers.