Autumn Mountain (秋山図, Shūzanzu) is a 1921 short story by Japanese writer Ryūnosuke Akutagawa.
While visiting his friend Yün Nan-t'ien, Wang Shih-ku tells a story about a masterful painting called Autumn Mountain by the artist Ta Ch'ih.
He explains that a man named Yen-k'o, a great admirer of Ta Ch'ih, learned of the painting, which was supposed to be the finest of the artist's works.
Convinced he has witnessed perfect beauty, he attempts to purchase the painting a number of times over many years, but Mr. Chang refuses to sell it.
After Wang Shih-ku finishes the story, he and Yün Nan-t'ien muse over whether the painting had another version, or if the masterpiece Yen-k'o saw never existed outside of his head.