树胡（Treebeard）或法贡（Fangorn）是托尔金（J. R. R. Tolkien）奇幻小说中土大陆的一个虚构角色。他是最老的树人，树人是一种像树木的生物，又称为牧树人。树胡非常高大，树枝僵硬，有树皮的肤色及多叶的头发。他协助从半兽人部队逃出来的梅里雅达克·烈酒鹿（Merry）及皮瑞格林·图克（Pippin）。在梅里及皮聘的影响下，树胡导致埃斯塔力（Istari）之首萨鲁曼（Saruman）衰落及被囚。树胡居住在法贡森林（Fangorn Forest），该地以他的名字来命名，或他以森林为名。

Treebeard (Sindarin: Fangorn) is a fictional character from J. R. R. Tolkien's Middle-earth fantasy writings. The eldest of the species of Ents, he is said to live in the ancient Forest of Fangorn and stands fourteen feet (4 m) in height. He is treelike in appearance, with leafy hair and a rigid structure. Fangorn Forest lies next to Isengard where Saruman the White resides. His motto is "Do not be hasty."