Tokyo: The Last Megalopolis (Japanese: 帝都物語, Hepburn: Teito Monogatari) is a 1988 Japanese epic tokusatsu historical dark fantasy/science fiction film directed by Akio Jissoji, produced by "Exe" studios and distributed by Toho Studios. It is the first cinematic adaptation of the award-winning historical fantasy novel Teito Monogatari by Hiroshi Aramata. The film stars Kyūsaku Shimada, Shintaro Katsu, Kōji Takahashi, Jo Shishido, Junichi Ishida, Mieko Harada, Kō Nishimura, and Shirō Sano among others. With a budget of around 1 billion yen (roughly $8 million), the movie was one of the most expensive live action Japanese special effects films to have been produced during that decade (by contrast, the internationally released 1984 film The Return of Godzilla was only budgeted at $6.25 million).

The movie went on to become a notable success in Japan. It was one of the top ten highest grossing domestic motion pictures of 1988. It continues to be regarded in the country as a respected cult film. A sequel, Tokyo: The Last War, was released the following year.