Ponyo is a 2008 Japanese animated fantasy film written and directed by Hayao Miyazaki. It was animated by Studio Ghibli for the Nippon Television Network, Dentsu, Hakuhodo DY Media Partners, Buena Vista Home Entertainment, Mitsubishi, and distributed by Toho. The film stars Yuria Nara, Hiroki Doi, Tomoko Yamaguchi, Kazushige Nagashima, Yūki Amami, George Tokoro, Rumi Hiiragi, Akiko Yano, Kazuko Yoshiyuki and Tomoko Naraoka. It is the eighth film Miyazaki directed for Studio Ghibli, and his tenth overall.

The film tells the story of Ponyo, a goldfish who escapes from the ocean and is helped by a five-year-old human boy, Sōsuke, after she is washed ashore while trapped in a glass jar. As they bond with each other, Ponyo desires to become a human girl, against the devastating circumstances brought about by her acquisition and use of magic.

The film was originally released in Japan on July 19, 2008, by distributor Toho. It was a major commercial success, grossing over $204 million worldwide and becoming the eighth-highest-grossing anime film of all time. It received critical acclaim for its uplifting themes, visual design, and simultaneous appeal towards young children and all audiences.

An English-language version of the film was released on August 14, 2009, to 927 theatres across the U.S., the widest opening for a Studio Ghibli film in the U.S. It was produced by The Kennedy/Marshall Company and released by Walt Disney Studios Motion Pictures through their Walt Disney Pictures banner.