Lord Nibbler is a fictional character from the animated television series Futurama. He is voiced by Frank Welker who provides not only the speaking lines but also the various noises he makes when not speaking English.

During most of the series Nibbler masquerades as an innocent, cute and unintelligent pet. In very rare circumstances he may break his undercover identity and suddenly be discovered to be super intelligent, equipped with unique technology and strange natural abilities, which he uses as part of his secret mission to guard the existence of the entire universe and stop the creation of various time travel paradox.