Allan Henry Hoover (July 17, 1907 – November 4, 1993) was a British-born American mining engineer, rancher, financier, and the younger son of President Herbert Hoover and First Lady Lou Henry.

He earned a bachelor's degree from Stanford University and also studied towards a master's degree at Harvard Business School before pursuing a career in the banking industry.

Moreover, he bought his father's birthplace in West Branch, Iowa for $4,500 and turned it into the Herbert Hoover Presidential Library and Museum.

[3] He was married to Margaret Coberly Hoover with whom he had two sons, Andrew and Allan Jr., and a daughter, Lou Henry.

In his retirement, Hoover split his time between the San Francisco Bay Area and Greenwich, Connecticut.