Lexx (also known as LEXX: The Dark Zone Stories and Tales from a Parallel Universe) is a science fiction television series created by Lex Gigeroff and brothers Paul and Michael Donovan. It originally aired on April 18, 1997, on Canada's Citytv as four made-for-TV movies. Beginning with season two, the format changed to a traditional TV series with each episode running 45 minutes long. The series follows a group of mismatched individuals aboard the organic spacecraft Lexx as they travel through two universes and encounter planets, including a parody of Earth. The narrative includes irony, parody, and sex comedy, and explores ideas of fatalism, reincarnation, the afterlife, and the paradigm of good and evil.

The series is a Canadian and German co-production with some additional funding from Channel 5. Sci Fi Channel purchased the series from Salter Street Films and began airing episodes from seasons one and two (the former under the name Tales From a Parallel Universe) for the United States audience in January 2000. Lexx was co-produced by Salter Street Films, later absorbed by Alliance Atlantis. In Canada, Lexx aired on the Alliance Atlantis-owned Showcase network. Lexx was primarily filmed in Canada and Germany, with additional filming on location in Iceland, Thailand, Namibia, New Zealand, the United Kingdom, and the British Virgin Islands.

Lexx had very different tones throughout its run. While the original TV movies and the second season were mostly science fiction drama with dark comedy, season three was more serious and explored themes of life, death, and reincarnation. The show's final season – set on Earth in the early 2000s – took many turns into pure farce and introduced magic and other new elements. The series has garnered a cult following.