鱼骨木属（学名：Canthium）是茜草科下的一个属，为灌木或乔木植物。该属共有200种，分布于热带亚洲、非洲和大洋洲。

Canthium is a genus of flowering plants in the Rubiaceae family. They are shrubs and small trees. The leaves are deciduous and the stems are usually thorny.