The Second Battle of Corinth (which, in the context of the American Civil War, is usually referred to as the Battle of Corinth, to differentiate it from the Siege of Corinth earlier the same year) is fought October 3–4, 1862, in Corinth, Mississippi.

For the second time in the Iuka-Corinth Campaign, Union Maj. Gen. William Rosecrans defeats a Confederate army, this time one under Maj. Gen. Earl Van Dorn.

After the Battle of Iuka, Maj. Gen. Sterling Price marches his army to meet with Van Dorn's.

The combined force, known as the Army of West Tennessee, is put under the command of the more senior Van Dorn.

The army moves in the direction of Corinth, a critical rail junction in northern Mississippi, hoping to disrupt Union lines of communications and then sweep into Middle Tennessee.

The fighting begins on October 3 as the Confederates push the U.S. Army from the rifle pits originally constructed by the Confederates for the Siege of Corinth.

The Confederates exploit a gap in the Union line and continue to press the Union troops until they fall back to an inner line of fortifications.

On the second day of battle, the Confederates move forward to meet heavy Union artillery fire, storming Battery Powell and Battery Robinett, where desperate hand-to-hand fighting occurs.

A brief incursion into the town of Corinth is repulsed.

After a U.S. counterattack recaptures Battery Powell, Van Dorn orders a general retreat.

Rosecrans does not pursue immediately and the Confederates escaped destruction.