Lewis Green Stevenson (August 15, 1868 – April 5, 1929) was an American politician.

His grandson, Adlai Ewing Stevenson III, was a U.S. senator from Illinois.

In 1917, he served as investigator for the Department of the Navy under its paymaster general, Samuel McGowan, a boyhood friend.

They had two children, Elizabeth "Buffy" and Adlai Ewing Stevenson II.

[citation needed] He owned three estates in Illinois, including a coal mine and 13,000 acres (5,300 ha) of farmland.