International

Adult Swim has been actively expanding its reach across the world since 2005. New Zealand, Australia, and Latin America air the block on the Cartoon Network, just like in the United States. However, some international Cartoon Networks do not desire Adult Swim to air on their 24-hour children's network. In those markets, the block is licensed to other networks or Television stations instead—such as Ofcom in the United Kingdom—where regulation issues arise. Some networks enter into an agreement giving the rights to the entire block, including branding and all owned programming, whereas others such as Teletoon in Canada sign a first-right-of-refusal deal and do not choose to use the branding.

Australia and New Zealand In Australia and New Zealand, Adult Swim was broadcast on Cartoon Network from 2002 until December 31, 2007. The block is no longer seen on Cartoon Network but the comedy shows are now airing on The Comedy Channel. The block returned with Robot Chicken and Harvey Birdman, in March 2008, with Aqua Teen Hunger Force joining the programming on July 1.[16] The Boondocks also air on the same channel although it's not under the Adult Swim banner and instead airs separately. Moral Orel has also premiered on Australian television.[17] However, SBS broadcasts full episodes of Frisky Dingo and Squidbillies on its website as of July 2009 with an Adult Swim image appearing before each episode. Most of the anime shows have not returned back to television, however a new anime block on the Australian Sci-Fi Channel airs shows previously aired on both Adult Swim USA and Australia. The block features Ghost In The Shell: Stand Alone Complex, Cowboy Bebop, and Blood+. Some series that aired on Adult Swim have been released to Region 4 DVD by Madman Entertainment, including shows that have never been shown on Australian television before, such as Metalocalypse, Tim and Eric Awesome Show, Great Job!, and Frisky Dingo. The Aqua Teen Hunger Force Colon Movie Film for Theaters has also been quietly released to DVD.[18]

United Kingdom and Ireland Launched on July 7, 2006, the UK network Bravo used to air an Adult Swim block nightly, generally starting at midnight each night. The UK's Bravo channel is owned by Virgin Media Television, although in other parts of the world Adult Swim is a block on Time Warner-owned Cartoon Network. Shows that were previously a part of the UK's Adult Swim block are Robot Chicken, Aqua Teen Hunger Force, Sealab 2021, The Brak Show, Tom Goes to the Mayor, Space Ghost Coast to Coast, The Venture Bros., Moral Orel, and Metalocalypse,[19] Non-Williams Street shows on the block include Stripperella and Kid Notorious. The first "action" series was the anime Afro Samurai, which aired on May 4, 2007 alongside a new UK animated show Modern Toss. On July 7, 2008, Adult Swim ceased to broadcast on Bravo, and its future remains uncertain.

The UK Adult Swim website, like its American counterpart, offers free access to full episodes of shows including Squidbillies, Harvey Birdman, Attorney at Law, Tom Goes to the Mayor, Minoriteam, Stroker and Hoop, Moral Orel, 12 oz. Mouse, Perfect Hair Forever, Metalocalypse, and Frisky Dingo. Unlike Adult Swim on Bravo UK, the website service is owned by Time Warner. Adult Swim programming can also be ordered through various "on demand" and mobile TV services.

Revolver Entertainment recently began distributing original Adult Swim series on DVD in the UK and Ireland.

Canada Teletoon's English-language service in Canada has a teen/adult-oriented block called "Teletoon Detour" that airs programming similar to Adult Swim every night. Adult Swim programs that aired on the Detour include 12 oz. Mouse, Aqua Teen Hunger Force, Family Guy, Futurama, Harvey Birdman, American Dad!, Metalocalypse, Robot Chicken, Squidbillies, Stroker and Hoop, The Boondocks, The Venture Bros., Home Movies, Tom Goes to the Mayor, Space Ghost Coast to Coast. The show Tim and Eric Awesome Show, Great Job! is the only Adult Swim original not to air on Teletoon in Canada, and instead airs on CTVglobemedia's The Comedy Network. Since July 2007, seven of the fourteen Adult Swim programs airing on The Detour were canceled and replaced by Canadian-produced adult cartoon shows. Teletoon's French-language service in Canada also has an adult-oriented block called "Le Détour sur Télétoon" that airs shows like The Boondocks, Family Guy, Home Movies, American Dad!, and Futurama. Similarly, YTV airs some anime originally broadcast on Adult Swim in its "Bionix" block. In June 2009, G4 in Canada launched "Adult Digital Distraction", a programing block featuring many Adult Swim shows such as Aqua Teen Hunger Force, Delocated, Fat Guy Stuck in Internet, Superjail, Tim and Eric Awesome Show, Great Job!, Tom Goes to the Mayor, and The Venture Bros.

Latin America In Latin America, an Adult Swim block airs during the overnight hours. It was originally carried on the regional version of Cartoon Network until April 2008, when it was picked up by I.Sat, another Turner Broadcasting System/Time Warner-owned network.