夜香树属（学名：Cestrum）是茄科下的一个属，为灌木或乔木植物。该属共有约160种，主要分布于南美洲。

Cestrum is a genus of - depending on authority - 150-250 species of flowering plants in the family Solanaceae. They are native to warm temperate to tropical regions of the Americas, from the southernmost United States (Florida, Texas: day-blooming cestrum, C. diurnum) south to the Bío-Bío Region in central Chile (green cestrum, C. parqui). They are colloquially known as cestrums or jessamines (from "jasmine", due to their fragant flowers).