Over the Garden Wall is an American animated television miniseries created by Patrick McHale for Cartoon Network. The series centers on two half-brothers who travel through a mysterious forest to find their way home, encountering a variety of strange and fantastical things on their journey. The show is based on McHale's animated short film Tome of the Unknown, which was produced as part of Cartoon Network Studios' shorts development program. Elijah Wood and Collin Dean voice the protagonists Wirt and Greg, and Melanie Lynskey voices Beatrice, a bluebird. The series' voice cast also includes Christopher Lloyd, Tim Curry, Bebe Neuwirth, Chris Isaak, Shirley Jones, Thomas Lennon, Jack Jones, Jerron Paxton, John Cleese and Samuel Ramey. The Blasting Company composed the soundtrack. Over the Garden Wall was broadcast throughout the week of November 3 to November 7, 2014.

The show was the first miniseries on the network. McHale first envisioned it in 2004 and pitched it to the network in 2006. After working on other Cartoon Network shows including The Marvelous Misadventures of Flapjack and Adventure Time, the network expressed interest in McHale pitching a pilot. That pilot, Tome of the Unknown, became the catalyst for Over the Garden Wall. Production of the show began in March 2014 and was largely done in Burbank, California, but many of the show's artists worked from other U.S. cities, while the program's animation was outsourced to South Korean studio Digital eMation. The series' environment evokes 19th- and 20th-century Americana, while its digital backgrounds are designed to resemble brunaille paintings.

The series was acclaimed by television critics, who praised its atmosphere and characters. In 2015, the series won an Emmy Award for Outstanding Animated Program. A one-shot comic book adaptation penned by McHale has been produced, with four further issues commissioned. This was later expanded into an ongoing comic series that ran for 20 issues and continued in a series of graphic novels and comic book miniseries. A three-minute stop-motion short film, produced by Aardman Animations, was released on November 3, 2024 to celebrate the 10th anniversary of the series, bringing back several cast and crew members, including McHale, Wood and Lynskey.