The Battle of Raymond was fought on May 12, 1863, near Raymond, Mississippi, during the Vicksburg Campaign of the American Civil War. After unsuccessful attempts to capture the strategic Mississippi River city of Vicksburg, Major General Ulysses S. Grant of the Union Army led another attempt, beginning in late April 1863. After crossing the river into Mississippi and winning the Battle of Port Gibson, Grant began moving east, with the intention of later turning west and attacking Vicksburg. As part of this movement, Major General James B. McPherson's 10,000 to 12,000-man XVII Corps moved towards Raymond. The Confederate commander of Vicksburg, Lieutenant General John C. Pemberton ordered Brigadier General John Gregg and his 3,000 to 4,000-strong brigade from Jackson to Raymond.

Gregg's brigade made contact with the leading elements of McPherson's corps on May 12. Neither commander was aware of the strength of his opponent, and Gregg acted aggressively, thinking McPherson's force was small enough his men could easily defeat it. McPherson, in turn, overestimated Confederate strength and responded cautiously. The early portions of the battle pitted two brigades of Major General John A. Logan's division against the Confederate force, and the battle was matched relatively evenly. Eventually, McPherson brought up Brigadier General John D. Stevenson's brigade and Brigadier General Marcellus M. Crocker's division. The weight of superior Union numbers eventually began to crack the Confederate line, and Gregg decided to disengage. McPherson's men did not immediately pursue.

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The battle at Raymond changed Grant's plans for the Vicksburg campaign, leading him to first focus on neutralizing the Confederate forces at Jackson before turning against Vicksburg.