The prune plum is a fruit-bearing tree, or its fruit. It is a subspecies of the plum Prunus domestica. The freestone fruit is similar to, but distinct from, the clingstone damson and is especially popular in Central Europe.

A plum is a fruit of some species in Prunus subg. Prunus. Dried plums are most often called prunes, though in the United States they may be just labeled as 'dried plums', especially during the 21st century.