东革阿里（或译「东葛阿里」，学名Eurycoma longifolia，马来语Tongkat Ali，印尼语Pasak Bumi）是生长于马来西亚和印度尼西亚等地的雌雄异株长绿树，有「马来西亚人参」的美名。 东革阿里是生长在东南亚靠近赤道的原始热带雨林中潮湿砂质土壤里，成熟期一般为 5 年以上。树高 4-6 米，最高可达 12 米，树干直径 8-10 厘米，最粗可达 15 厘米。树枝几乎没有分叉，树叶长在顶部呈伞状。其根亦不分叉，入地最深可达 2 米。

Eurycoma longifolia (commonly called tongkat ali or pasak bumi) is a flowering plant in the family Simaroubaceae, native to Indonesia, Malaysia, and, to a lesser extent, Thailand, Vietnam, and Laos. The plant is a medium-sized slender shrub that can reach 10 meters in height, and is often unbranched. The root of the plant has been used in folk medicine of the South East Asian region, and in modern times has common use as supplements, as well as food and drink additives.