Ronja, the Robber's Daughter (Japanese: 山賊の娘ローニャ, Hepburn: Sanzoku no Musume Rōnya) is a Japanese cel-shaded computer-animated television series, based on the novel Ronia, the Robber's Daughter (Ronja Rövardotter) written by Astrid Lindgren. Produced by Polygon Pictures, Studio Ghibli, NHK Enterprises and Dwango, the series is directed and storyboarded by Gorō Miyazaki, with Hiroyuki Kawasaki handling series composition and writing the scripts, Katsuya Kondō designing the characters, Toshio Suzuki providing the title logo and Satoshi Takebe composing the music. Miyazaki stated, "Ronja, the Robber's Daughter is not only a story about a young girl growing into adulthood, but also a story of love, growth, and the bond between parent and child and their friends. We aim to create a story that can be enjoyed by everyone, from children to adults." Kazuyoshi Saito wrote, produced and performed all the instruments on "Player" for Mari Natsuki to sing as the ending theme song. It is Studio Ghibli's first television series.

UK-based distributor Serious Lunch has acquired the worldwide distribution rights, except for Japan and Scandinavia. It sought English-language broadcasters and brought the series to potential backers at the 2015 Annecy International Animated Film Festival. Amazon began streaming the series on its Amazon Prime streaming service on January 27, 2017. GKIDS released the series in the United States on August 20, 2019 (distributed by Shout! Factory), and additional licenses were sold in China (UYoung Media) and Taiwan (PTS). The English dub is narrated by Gillian Anderson.