Hachi: A Dog's Tale is a 2009 American drama film and a remake of Seijirō Kōyama's 1987 Japanese film Hachikō Monogatari. The original film told the true story of the Akita dog named Hachikō who lived in Japan 1923–1935. Hachi: A Dog's Tale is an updated American adaptation based on the Japanese film. This version, which places it in a modern American context, was directed by Lasse Hallström, written by Stephen P. Lindsey and Kaneto Shindo, and produced by Richard Gere, Bill Johnson and Vicki Shigekuni Wong. The film stars Gere, Joan Allen, Sarah Roemer, Jason Alexander, and Cary-Hiroyuki Tagawa.

Hachi: A Dog's Tale premiered at the Seattle International Film Festival on June 13, 2009, and its first theatrical release was in Japan on August 8, 2009. The film was given a UK theatrical release on March 12, 2010, courtesy of Entertainment Film Distributors, and opened in more than 60 countries throughout 2009 and 2010. By the end of September 2010, the film's foreign box office returns had totalled more than $45 million. Sony Pictures Entertainment decided to forgo a U.S. theatrical release, bringing the film out on DVD on March 9, 2010 and eventually selling it to the Hallmark Channel, where it debuted on September 26, 2010.