Major Eugene Castner Lewis (June 21, 1845 – February 13, 1917) was an American engineer and businessman.

[2] Lewis was educated at the Pennsylvania Military Academy, enrolling in 1862, during the American Civil War.

[3] Lewis began his career as the president of Sycamore Mills in Cheatham County, Tennessee.

[6] Lewis was appointed as director-general of the Tennessee Centennial Exposition, held a year late in 1897.

[8] On April 19, 1909, Lewis conducted the dedication of the Sam Davis Statue outside the Tennessee State Capitol.

[6] He was buried at Mount Olivet Cemetery,[6] in a mausoleum shaped like an Egyptian pyramid, guarded by two sphinxes.