Stitch & Ai (Chinese: 安玲与史迪奇; pinyin: Ān líng yǔ shǐ dí qí; lit. 'An Ling and Stitch') is an English-language-produced donghua television series and a spin-off of Disney's Lilo & Stitch franchise. It is the franchise's third TV series, after the Western animated Lilo & Stitch: The Series and the Japanese Stitch! anime series. It was produced with the assistance of American animators. Set in Huangshan, Anhui, the thirteen-episode series features a Chinese girl named Wang Ai Ling in place of the original 2002–06 Western continuity's Lilo Pelekai and the anime's Yuna Kamihara as the titular human companion of the alien Stitch.
 The series first aired in China with a Mandarin Chinese dub from March 27 to April 6, 2017. The original English-language version first aired from February 5 to 27, 2018, in Southeast Asia on that region's Disney Channel. Twelve episodes of the series were available for free digital streaming in the United States via DisneyNow from December 1, 2018, to around June 2019.
 Stitch & Ai follows the events of Lilo & Stitch and its subsequent film and television sequels up to and including Leroy & Stitch, set around 2016. The series shows Stitch kidnapped by the Jaboodies, a faction of alien criminals who want to use him to win a space war after hacking a United Galactic Federation database and discovering a previously-unrevealed "metamorphosis program" that was secretly programmed in Stitch. This function causes the experiment to grow into a giant beast with four laser-firing tentacles when his destructive programming is triggered in a large city. However, a rival faction called the Woolagongs, who managed to steal the stolen data from the Jaboodies, board the Jaboodies' battle cruiser spaceship to try to kidnap Stitch for themselves from the Jaboodies, only for Stitch to be freed in the fighting. He escapes back to Earth, ending up in China's Huangshan mountains.
 In Huangshan, Stitch meets Wang Ai Ling, a spirited local girl who was soon to be separated from her older sister Jiejie by their aunt Daiyu after the sisters lost their parents in the past year. Daiyu, who hates the mountains and lives in a city, desires to move Ai in with her, believing that Ai would develop into a "proper lady" in the city, but Ai loves her home and is resistant to the idea. Stitch quickly befriends Ai and becomes her new "dog", and the two help one another deal with the other's problems; Ai helps Stitch fight off the Jaboodies and Woolagongs so he wouldn't be taken or used by either of them, as well as help find a shrine that he's been seeing in unusual visions he's been having, while he helps her stay in the mountains with Jiejie and ward off Daiyu's attempts to take her away. Jumba and Pleakley later show up initially trying to rescue Stitch and bring him back to the United Galactic Federation, but Ai and Jiejie convince the two aliens to let Stitch stay with them, letting them stay to keep a watch on Stitch and to help out him and his new family.
 The series also features various flashbacks to key scenes in the franchise that appear in "Hello – Goodbye", "Teacher's Pet", and "Monstrosity". The flashbacks consist of closely re-animated sequences, copying the originals to the best of their ability. The flashback scenes are based on scenes from the original Lilo & Stitch, Lilo & Stitch 2: Stitch Has a Glitch, and The Origin of Stitch. In co-ordinance with this, there are occasional appearances from previous characters of the Lilo & Stitch franchise, including Captain Gantu, the Grand Councilwoman, Cobra Bubbles, the Ice Cream Man, and (in a brief cameo) Dr. Hämsterviel.
 Kyle Hebert, Bobby Thong, Sarah Anne Williams, Deborah Crane, Jacob Craner, and Steve Kramer provide additional voices.
 Stitch & Ai is produced by Anhui Xinhua Media and Panimation Hwakai Media in association with Disney with additional work by Showfun Animation, Shanghai Fire & Ice Media, and Shanghai Aoju Media. The series began broadcast on CCTV-14 on March 27, 2017. Unlike Stitch!, this series was produced in co-operation with American Disney animators—including those who worked on Lilo & Stitch: The Series—to maintain a sense of visual continuity to the original American-produced films and TV series. Such artists included Greg Guler, the character designer of Gargoyles. The series was produced as part of an effort by Disney to enter the Chinese animation market. It was originally produced in English then dubbed into Mandarin Chinese.
 Tony Craig, an executive producer of Lilo & Stitch: The Series who directed Stitch! The Movie, Leroy & Stitch, and the season two episodes "Spike" and "Shoe", served as director for Stitch & Ai. Victor Cook, who was a director for both seasons of Lilo & Stitch: The Series, was initially signed onto the Chinese series and even visited China to assist making the eighth episode. At first, Cook contacted Craig to storyboard the first episode, but when Cook had to drop out due to other commitments, he had Craig take over directing. Craig joined during pre-production, and had to delay joining in full due to a prior employment issue, although Panimation waited for him. Craig oversaw the storyboards, animatics, animation, most of the designs, and all the editing sessions, but he was not involved with the dialogue recordings, which happened in Los Angeles while Craig lives in North Carolina.
 The show made its English premiere on Disney Channel Asia on February 5, 2018. The series (except for the ninth episode "The Phoenix") later became available in the United States for free streaming on DisneyNow on December 1, 2018. It was later removed from the service in June 2019.