Edward "Allegheny" Johnson (April 16, 1816 – March 2, 1873) was a United States Army officer and Confederate general in the American Civil War.

Johnson was born on Salisbury Plantation near current-day Midlothian in Chesterfield County, Virginia, but his family soon moved to Kentucky.

In the Mexican–American War, Johnson distinguished himself for action at Veracruz, Cerro Gordo, Churubusco, Molino del Rey, and Chapultepec.

He received two brevet promotions, to captain and major, during the war and was awarded a ceremonial sword by the state of Virginia for his bravery.

After the outbreak of the Civil War, Johnson resigned his United States Army commission and received the rank of colonel in the 12th Georgia Infantry on July 2, 1861.

His Army of the Northwest constructed a series of breastworks and trenches atop Shenandoah Mountain which they named simply Fort Edward Johnson.

Due to a wound he received in Mexico, he was afflicted with an eye that winked uncontrollably, causing many women to believe he was flirting with them.

Instead, Johnson's division was the primary force that attacked Culp's Hill on the second and third days, suffering considerable casualties assaulting this impregnable position multiple times with no lasting success.

During the Battle of Spotsylvania Court House, on May 12, 1864, at the "Bloody Angle" section of the Confederate "Mule Shoe" defensive line, Johnson was captured along with Brig.

At the end of the war, Johnson was moved to the Old Capitol Prison in Washington, D.C., where he was accused of being somehow complicit in the assassination of Abraham Lincoln.