- Battle of Galveston -- January 1, 1863 Texas Confederate victory: John B. Magruder expels occupying Union troops from Galveston, Texas.
- Battle of Hartville -- January 9–11, 1863 Missouri Confederate victory: Confederates are victorious, but unable to continue raid.
- Bear River Massacre -- January 29, 1863 Idaho (Washington Territory at the time) American Indian Wars: Shoshone forces massacred by Union troops.
- Battle of Dover -- February 3, 1863 Tennessee Union victory: Failed Confederate attack on town.
- Yazoo Pass Expedition — February 3 - April 12, 1863 Mississippi Confederate victory: Elaborate amphibious Union flanking maneuver is thwarted by Confederates at Fort Pemberton during the Vicksburg campaign.
- Battle of Fort McAllister (1863) -- March 5, 1863 Georgia Confederate victory:
- Battle of Fort Anderson -- March 13–15, 1863 North Carolina Union victory: Daniel H. Hill leads unsuccessful Confederate attack on New Bern.
- Battle of Kelly's Ford -- March 17, 1863 Virginia Confederate victory: Indecisive cavalry battle during Civil War.
- Battle of Vaught's Hill -- March 20, 1863 Tennessee Union victory: Union forces withstand attack by John Hunt Morgan's Confederates.
- Battle of Washington, NC -- March 30 – April 20, 1863 North Carolina Inconclusive: Hill unable to take North Carolina town from Union forces.
- Battle of Grand Gulf -- April 29, 1863 Mississippi Confederate victory: Unsuccessful naval attack by Grant's forces.
- Battle of Snyder's Bluff -- April 29 – May 1, 1863 Mississippi Confederate victory: Union feint during Vicksburg Campaign.
- Battle of Crooked Creek — April 30, 1863 Alabama Nathan Bedford Forrest and Union Col. Abel Streight fight Cavalry action for several hours.
- Battle of Chancellorsville -- April 30 – May 6, 1863 Virginia Confederate victory: Lee defeats Hooker's Army of Potomac, Jackson mortally wounded.
- Battle of Port Gibson -- May 1, 1863 Mississippi Union victory: in Vicksburg campaign, Grant defeats Confederates
- Battle of Chalk Bluff -- May 1–2, 1863 Arkansas Confederate victory: Confederates win but can't continue raid.
- Second Battle of Fredericksburg (Second Battle of Marye's Heights) -- May 3, 1863 Virginia Union victory: Union forces under John Sedgwick defeat Confederate forces left to guard the town by Lee.
- Battle of Raymond -- May 12, 1863 Mississippi Union victory: Failed Confederate attempt to protect Vicksburg from approaching Federals.
- Siege of Vicksburg -- May 18 – July 4, 1863 Mississippi Union victory: the siege ends; Grant accepts surrender of second Confederate army under Pemberton.
- Siege of Port Hudson -- May 21 – July 9, 1863 Louisiana Union victory: last Confederate stronghold on Mississippi surrenders; Gardner surrenders to Banks.
- Battle of Milliken's Bend -- June 7, 1863 Louisiana Union victory: In the largest battle fought between Confederate and Black troops, after nearly two days of close combat, the Confederates were defeated in their attempt to raise the siege of Vicksburg.
- Battle of Brandy Station -- June 9, 1863 Virginia Inconclusive: Pleasonton surprises J.E.B. Stuart's cavalrymen in their camps near Brandy Station.
- Second Battle of Winchester -- June 13–15, 1863 Virginia Confederate victory: Confederate victory paves way for Lee's invasion of the North.
- Battle of Aldie -- June 17, 1863 Virginia Inconclusive: Indecisive battle during Robert E. Lee's march north.
- Battle of Middleburg -- June 17–19, 1863 Virginia Inconclusive: J.E.B. Stuart retreats from engagement with Union cavalry.
- Battle of Upperville -- June 21, 1863 Virginia Inconclusive: Indecisive cavalry battle during Lee's invasion.
- Battle of Hoover's Gap -- June 24–26, 1863 Tennessee Union victory: Union victory prevents Confederates in Tennessee from coming to the aid of Vicksburg.
- Battle of Goodrich's Landing -- June 29–30, 1863 Louisiana Inconclusive: Confederates drive Union Black Regiments off of several plantations.
- Battle of Sporting Hill — June 30, 1863 Pennsylvania Inconclusive: Small skirmish during the Gettysburg Campaign was the northernmost engagement of Robert E. Lee's Army of Northern Virginia during the Civil War.
- Battle of Hanover -- June 30, 1863 Pennsylvania Inconclusive: J.E.B. Stuart forced to change his route, delaying his efforts to unite with Lee's force outside Gettysburg.
- Battle of Carlisle — July 1, 1863 Pennsylvania Inconclusive: Small, but strategically important skirmish during the Gettysburg Campaign.
- Battle of Gettysburg -- July 1–3, 1863 Pennsylvania Union victory: Lee loses to Meade, Pickett's Charge fails, ends second invasion of North. Confederate army arrived in Gettysburg to resupply army, unaware of Union army nearby.
- Battle of Hunterstown — July 2, 1863 Pennsylvania Inconclusive: Minor cavalry engagement during the Gettysburg Campaign
|
- Battle of Fairfield — July 3, 1863 Pennsylvania Confederate victory: Cavalry engagement during the Gettysburg Campaign secured the important Hagerstown Road.
- Jackson Expedition — July 5–25, 1863 Mississippi Union victory: Forces under General William T. Sherman clear General Joseph E. Johnston's relief effort from the Vicksburg area.
- Battle of Helena -- July 4, 1863 Arkansas Union victory: Confederate assault on river port fails securing eastern Arkansas for Union.
- Battle of Boonsboro -- July 8, 1863 Maryland Inconclusive: Indecisive action at rearguard of Lee's retreat.
- Battle of Corydon -- July 9, 1863 Indiana Confederate victory: Confederate raid results in civilian casualties, including a Lutheran minister.
- Battle of Funkstown — July 10, 1863 Maryland Inconclusive: Action during Lee's retreat to Virginia after the Battle of Gettysburg.
- Battle of Honey Springs -- July 17, 1863 Oklahoma (Indian Territory at the time) Union victory: In Indian Territory, two largely Black and American Indian forces meet. Union victory.
- Battle of Big Mound -- July 24–25, 1863 North Dakota (Dakota Territory at the time) * Dakota War of 1862: Union forces defeat Santee and Teton Sioux forces.
- Battle of Dead Buffalo Lake -- July 26, 1863 North Dakota (Dakota Territory at the time) * Sioux Wars/Dakota War of 1862: Sibley defeats Sioux forces.
- Battle of Salineville -- July 26, 1863 Ohio Union victory: Confederate Brigadier General John Hunt Morgan surrenders in Ohio. The northernmost battle in the Civil War.
- Battle of Stony Lake -- July 28, 1863 North Dakota (Dakota Territory at the time) * Dakota War of 1862: Sioux forces escape Union forces in pursuit.
- Second Battle of Fort Sumter -- August 17 – September 9, 1863 South Carolina Confederate victory: Union's massive bombardment and naval attack fails to retake the fort.
- Battle of Bayou Meto (Battle of Reed's Bridge) — August 27, 1863 Arkansas Confederate Victory: Confederate forces delay the Union advance on Little Rock.
- Battle of Whitestone Hill -- September 3–5, 1863 North Dakota (Dakota Territory at the time) * Sioux Wars/Dakota War of 1862: Union forces defeat several American Indian tribes including the Sioux and Blackfeet.
- Second Battle of Sabine Pass -- September 8, 1863 Texas Confederate victory: Confederate forces place stakes in river to help aim their guns at Union ships.
- Battle of Bayou Fourche -- September 10, 1863 Arkansas Union victory: Union victory allows for capture of Little Rock.
- Battle of Chickamauga -- September 19–20, 1863 Georgia Confederate victory: Bragg defeats Rosecrans, George Thomas of US anointed "The Rock of Chickamauga"
- Battle of Baxter Springs -- October 6, 1863 Kansas Confederate victory: Quantrill's Raiders massacre Union Black Troops during U.S. Civil War.
- First Battle of Auburn -- October 13, 1863 Virginia Union victory: J.E.B. Stuart escapes by hiding in a ravine.
- Battle of Bristoe Station -- October 14, 1863 Virginia Union victory: Meade defeats elements of Lee's forces, but Confederates destroy railroad during retreat.
- Second Battle of Auburn -- October 14, 1863 Virginia Inconclusive: Confederates attack Union rearguard, indecisive.
- Battle of Wauhatchie -- October 28–29, 1863 Tennessee Union victory: Longstreet defeated by Union forces.
- Battle of Bayou Bourbeux — November 3, 1863 Louisiana Confederate victory: Confederate District of Western Louisiana troops attack the isolated rear guard during Union withdrawal from Opelousas.
- Chattanooga Campaign -- November 23–25, 1863 Tennessee Union victory: Grant defeats Braxton Bragg and relieves Union forces besieged in Chattanooga.
- Battle of Mine Run -- November 27 – December 2, 1863 Virginia Inconclusive: Meade bombards Lee's Confederates but then withdraws.
- Battle of Ringgold Gap -- November 27, 1863 Georgia Confederate victory: Confederates under Patrick Cleburne defeat Union forces under Joseph Hooker.
- Battle of Fort Sanders -- November 29, 1863 Tennessee Union victory: Longstreet unable to take fort due to poor quality gunpowder.
|
