Xavier: Renegade Angel is an American adult animated black comedy television series created by Vernon Chatman and John Lee for Cartoon Network's nighttime programming block Adult Swim. It was produced by PFFR Productions, producers of Wonder Showzen, with computer animation provided by Cinematico. It premiered on November 4, 2007, on Adult Swim and November 1, 2007, on the Adult Swim website.

Xavier features an elaborate and nonlinear plot following the musings of an itinerant humanoid pseudo-shaman named Xavier. The show is known for its use of ideologically critical dark comedy as well as surrealist and absurdist humor presented through a psychedelic and satirically New Age lens. The program is also normally rated TV MA for intense, graphic, often bloody violence, as well as strong sexual content, use of racially/ethnically offensive language, and grotesque depictions in a comedic manner.

The series features ribald wordplay, nonchalant violence and transgressive sexuality, in deeply nested, often recursive plots. These plots are often nonlinear in their chronology; however, each episode seems to contain similar themes and motifs, as well as a single opening scene that has recurred in every episode of Xavier: a depiction of the titular character wandering through a desert (likely a satirical take on the "wandering in the desert" archetype as a search for wisdom) as he narrates a semi-spontaneous, often nonsensical philosophical thought that many times connects with the episode at hand, whilst the title card of the show itself flies overhead, usually varying in action or position. An opening theme presumed to be played by Xavier on his "shakashuri" is present during these.

Co-creator Vernon Chatman humorously called the show "a warning to children and adults about the dangers of spirituality". The show has been known to show insensitivity and caricatures of Catholicism, Islam, Middle America, redneck stereotypes, and anarcho-punk subcultures.

Xavier often incorporates underlying themes and concepts based outside of, though interconnected with, the plot of each episode. Philosophical or political concepts are often juxtaposed with the surrealistic and aleatory nature of the show. Society and cultural psychology and phenomena, the meaning of life, the existence of sentience and the nature of reality have been examined in one form or another throughout the program's 2 seasons.

Jokes and humor tend to be oriented towards Xavier's own philosophical inquiry and the "deep," "zen-like" diction of wisdom quotes from various spiritual systems (particularly Native American and Hindu or Eastern spirituality) that Xavier seemingly attempts to mimic. These are many times lightly mocked with Xavier's misuse of the phrases, reflecting on contemporary humor and taking the often circular logic of such statements far out of context.

Taboo topics — such as necrophilia, bestiality, homophobia, abortion, irreligion, pedophilia, incest, self-injury, transphobia, and racism — are used as sources for humor. In this respect, the program can be seen as containing a substantial amount of black comedy.

In Canada, Xavier: Renegade Angel previously aired on Teletoon's Teletoon at Night block and later G4's Adult Digital Distraction block. The series currently airs in Canada on the Canadian version of Adult Swim.