《白鯨》（Moby Dick）是19世紀美國小說家赫爾曼·梅爾維爾（Herman Melville 1819—1891）於1851年發表的一篇海洋題材的長篇小說，小說描寫了亞哈船長為了追逐並殺死白鯨（實為白色抹香鯨）莫比·迪克，最終與白鯨同歸於盡的故事。故事營造了一種讓人置身海上航行、隨時遭遇各種危險甚至是死亡的氛圍，是作者的代表作。
Moby-Dick or The Whale is a novel by Herman Melville, first published in 1851.[2] It is considered to be one of the Great American Novels and a treasure of world literature. The story tells the adventures of wandering sailor Ishmael, and his voyage on the whaleship Pequod, commanded by Captain Ahab. Ishmael soon learns that Ahab has one purpose on this voyage: to seek out Moby Dick, a ferocious, enigmatic white sperm whale. In a previous encounter, the whale destroyed Ahab's boat and bit off his leg, which now drives Ahab to take revenge.
In Moby-Dick, Melville employs stylized language, symbolism, and the metaphor to explore numerous complex themes. Through the journey of the main characters, the concepts of class and social status, good and evil, and the existence of God are all examined, as the main characters speculate upon their personal beliefs and their places in the universe. The narrator's reflections, along with his descriptions of a sailor's life aboard a whaling ship, are woven into the narrative along with Shakespearean literary devices, such as stage directions, extended soliloquies, and asides. The book portrays destructive obsession and monomania, as well as the assumption of anthropomorphism--projecting human instincts, characteristics and motivations onto animals. Moby Dick is ruthless in attacking the sailors who attempt to hunt and kill him, but it is Ahab who invests Moby Dick's natural instincts with malignant and evil intentions. In fact, it is not the whale but the crippled Ahab who alone possesses this characteristic.