小叶紫檀（学名：Pterocarpus santalinus），又名檀香紫檀或茜草叶紫檀，是印度特有的紫檀属植物。它们只生长在印度坦米尔纳德邦及安得拉邦交界的古德伯及契托尔。

小叶紫檀高8米，树干直径50-150厘,小叶紫檀幼树生长适应能力很强，就算是在退化土壤中也能成长，树苗成长速度缓慢,3岁才约60公分,5岁才约1米。它们耐寒，要低至零下1℃才会死亡。叶子互生，长3-9厘米，分叉树枝有三小叶。花朵形成短的总状花序。果实是长6-9厘米的豆荚，内有1-2颗种子。。

小叶紫檀的近照。

"Red sandalwood" redirects here. See also: Algum and Adenanthera pavonina.

Pterocarpus santalinus, with the common names red sanders, red sandalwood, and saunderswood, is a species of Pterocarpus endemic to the southern Eastern Ghats mountain range of South India. This tree is valued for the rich red color of its wood. The wood is not aromatic. The tree is not to be confused with the aromatic Santalum sandalwood trees that grow natively in South India.