小叶桃花心木（学名：Swietenia mahagoni），又名西印度群岛桃花心木，是原产于美国科罗拉多州、巴哈马群岛、古巴、牙买加及伊斯帕尼奥拉岛的一种桃花心木。

中等大小的常绿乔木，高达30-35米；树皮淡红色，鳞片状剥落；偶数羽状复叶，长12-25厘米，有4-8对革质卵形或卵状披针形的小叶，每块小叶长5-6厘米及阔2-3厘米，没有顶端小叶；春夏开白色花，圆锥花序生于叶腋，花细小，有花柄；卵形大蒴果，有木质的壳，5瓣裂，长5-10厘米及阔3-6厘米，内含大量有翅的种子。

Swietenia mahagoni, commonly known as the West Indian mahogany, is a species of Swietenia native to southern Florida in the United States and islands in the Caribbean including the Bahamas, Cuba, Jamaica, Dominican Republic and Haiti . It is the species from which the original mahogany wood was produced.