The Kentucky coffeetree, Gymnocladus dioicus, is a tree in the subfamily Caesalpinioideae of the pea family Fabaceae, native to the Midwest and Upper South of North America. The seed may be roasted and used as a substitute for coffee beans; however, unroasted pods and seeds are toxic. The wood from the tree is used by cabinetmakers and carpenters.

From 1976 to 1994 the Kentucky coffeetree was the state tree of Kentucky, after which the tulip poplar was returned to that designation.