First Lieutenant David L. Cockley (June 8, 1843 – December 26, 1901) was an American soldier who fought in the American Civil War. Cockley received the country's highest award for bravery during combat, the Medal of Honor, for his action during the Battle of Waynesboro in Georgia on 4 December 1864. He was honored with the award on 2 August 1897.
Cockley was born in Lexington, Ohio on 8 June 1843. He enlisted into the 10th Ohio Cavalry. He died on 26 December 1901, and his remains are interred at the Shelby-Oakland Cemetery in Shelby, Ohio.