柏木属（学名：Cupressus）是柏科下的一个属，为常绿乔木植物。该属共有20种以上，分布于北美、东南欧及东亚与南亚。

The genus Cupressus is one of several genera within the family Cupressaceae that have the common name cypress; for the others, see cypress. It is considered a polyphyletic group. Based on genetic and morphological analysis, the Cupressus genus is found in the Cupressoideae subfamily. The common name comes from Old French cipres and that from Latin cyparissus, which is the latinisation of the Greek κυπάρισσος (kypárissos).