Donald Leon Blankenship is an American business executive, political candidate, and convicted criminal. He was chairman and CEO of the Massey Energy Company—the sixth-largest coal company in the United States—from 2000 until 2010 when an explosion at Massey's Upper Big Branch Mine resulted in the death of 29 workers. He was imprisoned for 1 year for conspiring to violate federal mine safety standards.

Massey Energy Company was a coal extractor in the United States with substantial operations in West Virginia, Kentucky and Virginia. By revenue, it was the fourth largest producer of coal in the United States and the largest coal producer in Central Appalachia. By coal production weight, it was the sixth largest producer of coal in the United States.