红千层属（学名：Callistemon）是桃金娘科下的一个属，为乔木或灌木植物。该属共有约20余种，原产于澳大利亚。

Callistemon /ˌkælᵻˈstiːmən/ is a genus of shrubs in the family Myrtaceae, first described as a genus in 1814. The entire genus is endemic to Australia but widely cultivated in many other regions and naturalized in scattered locations. Their status as a separate taxon is in doubt, some authorities accepting that the difference between callistemons and melaleucas is not sufficient for them to be grouped in a separate genus.