10 Bloodiest Civil War Battles

The Civil War Battles That Resulted in the Most Casualties

The Civil War lasted from 1861-1865 and resulted in the deaths of more than 620,000 Union and Confederate soldiers. Each of the battles on this list resulted in more than 19,000 casualties including those who were either killed or wounded.

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Battle of Gettysburg

This battle which occurred from the July 1-3, 1863 in Gettysburg, Pennsylvania resulted in 51,000 casualties of which 28,000 were Confederate soldiers. The Union was considered the winner of the battle.

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Battle of Chickamauga

Lt. Van Pelt defending his battery in the battle of Chickamauga during the American Civil War
Rischgitz/Stringer/Hulton Archive/Getty Images

The Battle of Chickamauga took place in Georgia between September 19-20, 1863. It was a victory for the Confederacy that resulted in 34,624 casualties of which 16,170 were Union soldiers.

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Battle of Spotsylvania Court House

Dead of Ewell's Corps, Battle of Spotsylvania, May 1864
Source: Library of Congress Prints and Photographs Division: LC-DIG-ppmsca-32934

Occurring between May 8-21,1864, the Battle of Spotsylvania Court House took place in Virginia. 30,000 casualties of which 18,000 were Union soldiers. However, it was not conclusive whether the union or the Confederacy won the battle.

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Battle of the Wilderness

Ulysses S. Grant, Union Commander in the Battle of the Wilderness
Getty Images

This battle took place in Virginia between May 5-7, 1864. It resulted in 25,416 casualties. The Confederacy won this battle.

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Battle of Chancellorsville

Battle of Chancellorsville in the American Civil War
Library of Congress Prints and Photographs Division LC-DIG-pga-01844

The Battle of Chancellorsville took place in Virginia from May 1-4, 1863. It resulted in 24,000 casualties of which 14,000 were Union soldiers. The Confederates won the battle.

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Battle of Shiloh

Battle of Shiloh in the American Civil War
Library of Congress Prints and Photographs Division LC-DIG-pga-04037

Between April 6-7, 1862, the Battle of Shiloh raged in Tennessee. Approximately 23,746 men died. Of those, 13,047 were Union soldiers. While there were more Union than Confederate casualties, the battle did result in a tactical victory for the North.

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Battle of Stones River

Monument at the Battle of Stones River Battlefield
Library of Congress Prints & Photographs Division LC-DIG-cwpb-02108

The Battle of Stones River occurred between December 31, 1862-January 2, 1863 in Tennessee. It resulted in a Union victory with 23,515 casualties of which 13,249 were Union soldiers.

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Battle of Antietam

Dead at the Battle of Antietam
Library of Congress Prints & Photographs Division LC-DIG-ds-05194

The Battle of Antietam occurred between September 16-18, 1862 in Maryland. It resulted in 23,100 casualties. While the result of the battle was inconclusive, it did give a strategic advantage to the Union.

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Second Battle of Bull Run

African-Americans fleeing from Virginia after the 2nd Battle of Bull Run.
Courtesy of Library of Congress, Prints & Photographs Division, LC-B8171-0518 DLC

Between August 28-30, the Second Battle of Bull Run occurred in Manassas, Virginia. It resulted in a victory for the Confederacy. There were 22,180 casualties of which 13,830 were Union soldiers.

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Battle of Fort Donelson

Print depicting soldiers in the American Civil War
Library of Congress Prints & Photographs Division LC-USZ62-133797

The Battle of Fort Donelson was fought between February 13-16, 1862 in Tennessee. It was a victory for the Union forces with 17,398 casualties. Of those casualties, 15,067 were Confederate soldiers.