George Augustus Sheridan (February 22, 1840 – October 7, 1896) was an American Civil War veteran and politician who, along with Effingham Lawrence is known for serving for the shortest term in congressional history, serving for just one day in the U.S. House of Representatives.

In 1866, he moved to New Orleans, Louisiana; where he served as brigadier general of the militia on the staff of the Republican Governor, Henry Clay Warmoth.

Sheridan contested the election and the matter wasn't fully settled until March 3, 1875, the last day of Congress.

[1] After his service in the House, he was appointed Recorder of Deeds in the District of Columbia by President Rutherford Hayes, serving from May 17, 1878, until May 17, 1881, when President James Garfield fired him in order to provide the job to Frederick Douglass.

Sheridan died at the age of fifty-six in the National Home for Disabled Volunteer Soldiers in Hampton, Virginia.