《白牙》（英语：White Fang，中文又译为《白獠牙》 ）是美国作家杰克·伦敦所着的一本小说，首次连载于《Outing》杂志，于1906年出版。该小说的背景是19世纪末的加拿大育空的克朗代克地区淘金热，讲述了一只野生狼狗的驯化历程。《白牙》是杰克·伦敦的代表作《野性的呼唤》的姊妹篇，同时在小说主题上形成了对照。后者讲述了一只被诱拐的家养狗回归野性的过程。

这部小说的视角大部分从小说的主角白牙出发，这种写法使得杰克·伦敦能够探索动物看待人类世界的方式。《白牙》洞察了残酷的野生世界及同等残酷的人类世界，同时也探索了关于道德和赎罪的复杂主题。

This article is about the novel. For films and other uses, see White Fang (disambiguation).

White Fang is a novel by American author Jack London (1876–1916) — and the name of the book's eponymous character, a wild wolfdog. First serialized in Outing magazine, it was published in 1906. The story takes place in Yukon Territory, Canada, during the 1890s Klondike Gold Rush and details White Fang's journey to domestication. It is a companion novel (and a thematic mirror) to London's best-known work, The Call of the Wild, which is about a kidnapped, domesticated dog embracing his wild ancestry to survive and thrive in the wild.