- Battle of Hampton Roads — March 8–9, 1862 Virginia Inconclusive: USS Monitor battles CSS Virginia, battle ends in a draw.
- Battle of New Bern — March 14, 1862 North Carolina Union victory: Union troops disembark from ships and capture the town.
- First Battle of Kernstown — March 23, 1862 Virginia Union victory: Union forces defeat Confederates under "Stonewall" Jackson.
- Battle of Fort Macon — March 23 – April 26, 1862 North Carolina Union victory: Confederate fort surrenders after Union artillery bombardment.
- Siege of Yorktown (1862) (Battle of Yorktown) — April 5 – May 4, 1862 Virginia Inconclusive: Union troops win skirmish near site of decisive Revolutionary War battle.
- Battle of South Mills — April 19, 1862 North Carolina Inconclusive: Confederates thwart attempt to destroy a canal.
- Siege of Corinth — April 29 – May 30, 1862 Mississippi Union victory: Union forces capture town, Beauregard tricks Union in order to escape to Tupelo.
- Battle of McDowell — May 8, 1862 Virginia Confederate victory: Stonewall Jackson's Confederates defeat Union forces.
- Battle of Drewry's Bluff — May 15, 1862 Virginia Confederate victory: Union naval attack repelled by Confederate artillery.
- First Battle of Pocotaligo — May 29, 1862 South Carolina Union victory: Mission objective fulfilled – Charleston & Savannah railroad bridge damaged.
- Battle of Tranter's Creek — June 5, 1862 North Carolina Union victory: Confederate forces retreat after Colonel Singletary is killed.
- Battle of Secessionville — June 16, 1862 South Carolina Confederate victory: Union repulsed, Union commander later court-martialed for disobeying orders.
- Battle of Saint Charles — June 17, 1862 Arkansas Union victory: The USS Mound City is hit by Confederate shore gun and explodes.
- Battle of Gaines' Mill or Chickahominy River — June 27, 1862 Virginia Confederate victory: (Seven Days) Lee defeats McClellan.
- Battle of Tampa — June 30 – July 1, 1862 Florida Confederate victory: Union gunboat attacks, but later withdraws.
| - Battle of Glendale — June 30, 1862 Virginia Inconclusive: (Seven Days) McClellan retreats from Lee's Confederates.
- Battle of Malvern Hill — July 1, 1862 Virginia Union victory: (Seven Days) McClellan defeats Lee but withdraws after battle.
- Battle of Cotton Plant (Battle of Hill's Plantation) — July 7, 1862 Arkansas Union victory: Union victory in Arkansas.
- Battle of Baton Rouge — August 5, 1862 Louisiana Union victory: Union troops repulse attempt to recapture Baton Rouge.
- Battle of Cedar Mountain — August 9, 1862 Virginia Confederate victory: Union forces repelled by Confederate counter-attack.
- Battle of Lone Jack — August 15–16, 1862 Missouri Confederate victory: Confederate victory, Union commander killed. Rebels forced to withdraw after battle.
- Second Battle of Bull Run or Second Manassas — August 28–30, 1862 Virginia Confederate victory: Lee defeats Pope's Army of Virginia
- Battle of Thoroughfare Gap — August 28, 1862 Virginia Confederate victory: Longstreet defeats small Union force to arrive at Manassas battlefield.
- Battle of Crampton's Gap (Battle of Burkittsville) — September 14, 1862 Maryland Union victory: Union broke the Confederate line and drove through the gap. Confederates were strategically successful in stalling the Union advance and protecting the rear of their forces engaged at Harpers Ferry.
- Battle of Antietam or Sharpsburg — September 17, 1862 Maryland Tactically inconclusive; strategic Union victory: McClellan ends Lee's first invasion of North, bloodiest single day of the war.
- Battle of Iuka — September 19, 1862 Mississippi Union victory: Rosecrans is victorious over Price near Mississippi town.
- First Battle of Newtonia — September 30, 1862 Missouri Confederate victory: Union forces panic under bombardment from Confederate artillery.
- Battle of Perryville or Chaplin Hills — October 8, 1862 Kentucky Inconclusive: Tactical indecisive battle that ended Bragg's Kentucky campaign.
- Battle of Pocotaligo — October 22, 1862 South Carolina Confederate victory: Union troops repulsed after minimally damaging the Charleston & Savannah railroad.
- Battle of Clark's Mill — November 7, 1862 Missouri Confederate victory: Union force surrenders to larger Confederate force.
- Battle of Cane Hill — November 28, 1862 Arkansas Confederate victory: Small Confederate force delays Union while larger force escapes.
- Battle of Hartsville — December 7, 1862 Tennessee Confederate victory: Disguised in Union uniforms, Confederates infiltrate and defeat Union forces.
- Battle of Fredericksburg — December 13, 1862 Virginia Confederate victory: Lee beats back repeated frontal assaults by Burnside.
- Battle of Chickasaw Bayou — December 26–29, 1862 Mississippi Confederate victory: (Vicksburg) Pemberton defeats Sherman; Union attack on Confederate right flank thwarted.
- Battle of Stones River (Second Battle of Murfreesboro) — December 31 – January 2, 1863 Tennessee Union victory: Bragg forced to withdraw after losing 11,739 men.
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