连香树（学名：Cercidiphyllum japonicum）是连香树科连香树属的植物。

落叶乔木，高达40米；灰色或棕灰色树皮；长枝细、短枝在长枝上对生；宽卵圆形的叶子对生，基部为心形，边缘有腺钝齿，掌状脉；春**叶开放雌雄异株的单性花，没有花瓣；蓇葖果2～4，微弯曲。

Cercidiphyllum japonicum, known as the Katsura (from its Japanese name カツラ, 桂), is a species of flowering tree in the family Cercidiphyllaceae native to China and Japan. It is sometimes called Caramel tree for the light caramel smell it emits during leaf fall.