白掌长臂猿（学名：Hylobates lar）或白手长臂猿，属于长臂猿属，是一种动物园中比较常见的长臂猿。

白掌长臂猿分布在中国西南部、缅甸、老挝、泰国和整个马来半岛。印尼的苏门答腊岛上也有白掌长臂猿的踪迹。常见于热带森林。该物种的模式产地在马六甲。

The lar gibbon (Hylobates lar), also known as the white-handed gibbon, is a primate in the gibbon family, Hylobatidae. It is one of the better-known gibbons and is often seen in zoos.