红椿（学名：Toona ciliata），楝科香椿属落叶或近常绿乔木。生长于海拔300～1500的山坡、沟谷等地，分布于湘、川、闽、粤、桂、滇等省。

乔木，高可达20米。叶为奇数或偶数羽状复叶，小叶7～8对，对生或近对生。圆锥花序顶生。蒴果长椭圆形，木质。

Toona ciliata is a forest tree in the mahogany family which grows throughout southern Asia from Afghanistan to Papua New Guinea and Australia. It is commonly known as the red cedar (a name shared by other trees), toon or toona (also applied to other members of the genus Toona), Australian redcedar, Burma cedar, Indian cedar, Moulmein cedar or the Queensland red cedar. It is also sometimes known as Indian mahogany.