木麻黄属（学名：Casuarina）是木麻黄科下的一个属，为乔木植物。该属共有约65种，大部分产自大洋洲，亚洲东南部、马来西亚、波利尼西亚及非洲热带地区亦有分布。

Casuarina is a genus of 17 tree species in the family Casuarinaceae, native to Australia, the Indian Subcontinent, southeast Asia, and islands of the western Pacific Ocean. It was once treated as the sole genus in the family, but has been split into three genera (see Casuarinaceae).