David Curtis "Steve" Stephenson (August 21, 1891 – June 28, 1966) was an American Ku Klux Klan (KKK) leader, convicted rapist and murderer. In 1923 he was appointed Grand Dragon of the Indiana Klan and head of Klan recruiting for seven other states. Later that year, he led those groups to independence from the national KKK organization. Amassing wealth and political power in Indiana politics, he was one of the most prominent national Klan leaders. He had close relationships with numerous Indiana politicians, especially Governor Edward L. Jackson.

In Stephenson v. State (1925) Stephenson was tried for and convicted of the abduction, rape, and murder of Madge Oberholtzer, a state education official. His trial, conviction and imprisonment was a severe blow to the public perception of Klan leaders as law abiding. The case destroyed the Klan as a political force in Indiana, and significantly damaged its standing nationally. Denied a pardon by Governor Jackson, in 1927 he started talking with reporters for the Indianapolis Times and released a list of elected and other officials who had been in the pay of the Klan. This led to a wave of indictments in Indiana, more national scandals, the rapid loss of tens of thousands of members, and the end of the second wave of Klan activity in the late 1920s.

Stephenson's burial in USVA Mountain Home National Cemetery in Johnson City, Tennessee, led to Congress passing restrictions barring serious sex offenders or those convicted of capital crimes from burial in veterans' cemeteries.