Ohio in the American Civil War

Overview

Ohio played a significant role in the American Civil War as a Union state, contributing large numbers of troops, officers, and resources to the Federal cause. Its central location and extensive rail network made it a key logistical hub for the movement of men and materiel to the Western and Eastern Theaters. Ohio’s population generally supported the Union, though there were pockets of dissent and political debate regarding the conduct of the war and issues such as conscription.

The state was not the site of major battles, but it was the scene of Confederate cavalry raids and served as a base for Union operations. Ohio’s industries and agriculture provided vital supplies, while its citizens participated in both military and home front efforts throughout the conflict.

Background

Before the war, Ohio was a free state with a diverse economy and a strong tradition of political activism. The state’s leadership and much of its population opposed secession, though there were divisions over issues such as abolition and the expansion of slavery. Ohio’s geographic position bordering slave states heightened tensions and influenced its mobilization efforts. Recruitment was vigorous, with local communities raising companies and regiments in response to Federal calls for volunteers. The state government coordinated with Federal authorities to organize, equip, and supply its troops.

Military Contributions

Ohio furnished a substantial number of regiments to the Union Army, including infantry, cavalry, and artillery units. Estimates of total regiments vary by source, but the Adjutant General’s reports and Dyer’s Compendium indicate that Ohio raised over 100 infantry regiments, numerous cavalry regiments, and several batteries of artillery. Ohio troops served in major campaigns and battles across both the Eastern and Western Theaters, and several Ohio brigades and divisions gained distinction for their service. The state also contributed officers who rose to high command in the Union Army.

Regiments Raised in Ohio

Select a regiment below to view a summary and links to related battles and rosters.

• 1st Ohio Infantry – 3 Months Service ​in the American Civil War
• 1st Ohio Infantry – 3 Years Service ​in the American Civil War
• 2nd Ohio Infantry – 3 Months Service ​in the American Civil War
• 2nd Ohio Infantry – 3 Years Service ​in the American Civil War
• 3rd Ohio Infantry – 3 Months Service ​in the American Civil War
• 3rd Ohio Infantry – 3 Years Service ​in the American Civil War
• 4th Ohio Infantry – 3 Months Service ​in the American Civil War
• 4th Ohio Infantry – 3 Years Service ​in the American Civil War
• 5th Ohio Infantry – 3 Months Service ​in the American Civil War
• 5th Ohio Infantry – 3 Years Service ​in the American Civil War
• 6th Ohio Infantry – 1 Month Service
• 8th Ohio Infantry – 1 Month Service
• 11th Ohio Infantry – 1 Month Service
• 6th Ohio Infantry – 3 Months Service in the American Civil War
• 6th Ohio Infantry – 3 Years Service ​in the American Civil War
• 7th Ohio Infantry – 3 Months Service ​in the American Civil War
• 7th Ohio Infantry – 3 Years Service ​in the American Civil War
• 8th Ohio Infantry – 3 Months Service ​in the American Civil War
• 8th Ohio Infantry – 3 Years Service ​in the American Civil War
• 9th Ohio Infantry – 3 Months Service ​in the American Civil War
• 9th Ohio Infantry – 3 Years Service ​in the American Civil War
• 10th Ohio Infantry – 3 Months Service ​in the American Civil War
• 10th Ohio Infantry – 3 Years Service ​in the American Civil War
• 11th Ohio Infantry – 3 Months Service ​in the American Civil War
• 11th Ohio Infantry – 3 Years Service ​in the American Civil War
• 12th Ohio Infantry – 3 Months Service ​in the American Civil War
• 12th Ohio Infantry – 3 Years Service ​in the American Civil War
• 13th Ohio Infantry – 3 Months Service ​in the American Civil War
• 13th Ohio Infantry – 3 Years Service ​in the American Civil War
• 14th Ohio Infantry – 3 Months Service ​in the American Civil War
• 14th Ohio Infantry – 3 Years Service ​in the American Civil War
• 15th Ohio Infantry – 3 Months Service ​in the American Civil War
• 15th Ohio Infantry – 3 Years Service ​in the American Civil War
• 16th Ohio Infantry – 3 Months Service ​in the American Civil War
• 16th Ohio Infantry – 3 Years Service ​in the American Civil War
• 17th Ohio Infantry – 3 Months Service ​in the American Civil War
• 17th Ohio Infantry – 3 Years Service ​in the American Civil War
• 18th Ohio Infantry – 3 Months Service ​in the American Civil War
• 18th Ohio Infantry – 3 Years Service ​in the American Civil War
• 19th Ohio Infantry – 3 Months Service ​in the American Civil War
• 19th Ohio Infantry – 3 Years Service ​in the American Civil War
• 20th Ohio Infantry – 3 Months Service ​in the American Civil War
• 20th Ohio Infantry – 3 Years Service ​in the American Civil War
• 21st Ohio Infantry – 3 Months Service ​in the American Civil War
• 21st Ohio Infantry – 3 Years Service ​in the American Civil War
• 22nd Ohio Infantry – 3 Months Service ​in the American Civil War
• 22nd Ohio Infantry – 3 Years Service ​in the American Civil War
• 23rd Ohio Infantry ​in the American Civil War
• 24th Ohio Infantry ​in the American Civil War
• 25th Ohio Infantry ​in the American Civil War
• 26th Ohio Infantry ​in the American Civil War
• 27th Ohio Infantry ​in the American Civil War
• 28th Ohio Infantry ​in the American Civil War
• 29th Ohio Infantry ​in the American Civil War
• 30th Ohio Infantry ​in the American Civil War
• 31st Ohio Infantry ​in the American Civil War
• 32nd Ohio Infantry ​in the American Civil War
• 33rd Ohio Infantry ​in the American Civil War
• 34th Ohio Infantry ​in the American Civil War
• 35th Ohio Infantry ​in the American Civil War
• 36th Ohio Infantry ​in the American Civil War
• 37th Ohio Infantry ​in the American Civil War
• 38th Ohio Infantry ​in the American Civil War
• 39th Ohio Infantry ​in the American Civil War
• 40th Ohio Infantry ​in the American Civil War
• 41st Ohio Infantry ​in the American Civil War
• 42nd Ohio Infantry ​in the American Civil War
• 43rd Ohio Infantry ​in the American Civil War
• 44th Ohio Infantry ​in the American Civil War
• 45th Ohio Infantry ​in the American Civil War
• 46th Ohio Infantry ​in the American Civil War
• 47th Ohio Infantry ​in the American Civil War
• 48th Ohio Infantry ​in the American Civil War
• 49th Ohio Infantry ​in the American Civil War
• 50th Ohio Infantry ​in the American Civil War
• 51st Ohio Infantry ​in the American Civil War
• 52nd Ohio Infantry ​in the American Civil War
• 53rd Ohio Infantry ​in the American Civil War
• 54th Ohio Infantry ​in the American Civil War
• 55th Ohio Infantry ​in the American Civil War
• 56th Ohio Infantry ​in the American Civil War
• 57th Ohio Infantry ​in the American Civil War
• 58th Ohio Infantry ​in the American Civil War
• 59th Ohio Infantry ​in the American Civil War
• 60th Ohio Infantry ​- 1 year service in the American Civil War
• 60th Ohio Infantry – 3 years service ​in the American Civil War
• 61st Ohio Infantry ​in the American Civil War
• 62nd Ohio Infantry ​in the American Civil War
• 63rd Ohio Infantry ​in the American Civil War
• 64th Ohio Infantry ​in the American Civil War
• 65th Ohio Infantry ​in the American Civil War
• 66th Ohio Infantry ​in the American Civil War
• 67th Ohio Infantry ​in the American Civil War
• 68th Ohio Infantry ​in the American Civil War
• 69th Ohio Infantry ​in the American Civil War
• 70th Ohio Infantry ​in the American Civil War
• 71st Ohio Infantry ​in the American Civil War
• 72nd Ohio Infantry ​in the American Civil War
• 73rd Ohio Infantry ​in the American Civil War
• 74th Ohio Infantry ​in the American Civil War
• 75th Ohio Infantry ​in the American Civil War
• 76th Ohio Infantry ​in the American Civil War
• 77th Ohio Infantry ​in the American Civil War
• 78th Ohio Infantry ​in the American Civil War
• 79th Ohio Infantry ​in the American Civil War
• 80th Ohio Infantry ​in the American Civil War
• 81st Ohio Infantry ​in the American Civil War
• 82nd Ohio Infantry ​in the American Civil War
• 83rd Ohio Infantry ​in the American Civil War
• 84th Ohio Infantry ​in the American Civil War
• 85th Ohio Infantry ​in the American Civil War
• 86th Ohio Infantry ​in the American Civil War
• 87th Ohio Infantry ​in the American Civil War
• 88th Ohio Infantry ​in the American Civil War
• 89th Ohio Infantry ​in the American Civil War
• 90th Ohio Infantry ​in the American Civil War
• 91st Ohio Infantry ​in the American Civil War
• 92nd Ohio Infantry ​in the American Civil War
• 93rd Ohio Infantry ​in the American Civil War
• 94th Ohio Infantry ​in the American Civil War
• 95th Ohio Infantry ​in the American Civil War
• 96th Ohio Infantry ​in the American Civil War
• 97th Ohio Infantry ​in the American Civil War
• 98th Ohio Infantry ​in the American Civil War
• 99th Ohio Infantry ​in the American Civil War
• 100th Ohio Infantry ​in the American Civil War
• 101st Ohio Infantry ​in the American Civil War
• 102nd Ohio Infantry ​in the American Civil War
• 103rd Ohio Infantry ​in the American Civil War
• 104th Ohio Infantry ​in the American Civil War
• 105th Ohio Infantry ​in the American Civil War
• 106th Ohio Infantry ​in the American Civil War
• 107th Ohio Infantry ​in the American Civil War
• 108th Ohio Infantry ​in the American Civil War
• 109th Ohio Infantry ​in the American Civil War
• 110th Ohio Infantry ​in the American Civil War
• 111th Ohio Infantry ​in the American Civil War
• 112th Ohio Infantry ​in the American Civil War
• 113th Ohio Infantry ​in the American Civil War
• 114th Ohio Infantry ​in the American Civil War
• 115th Ohio Infantry ​in the American Civil War
• 116th Ohio Infantry ​in the American Civil War
• 117th Ohio Infantry ​in the American Civil War
• 118th Ohio Infantry ​in the American Civil War
• 119th Ohio Infantry ​in the American Civil War
• 120th Ohio Infantry ​in the American Civil War
• 121st Ohio Infantry ​in the American Civil War
• 122nd Ohio Infantry ​in the American Civil War
• 123rd Ohio Infantry ​in the American Civil War
• 124th Ohio Infantry ​in the American Civil War
• 125th Ohio Infantry ​in the American Civil War
• 126th Ohio Infantry ​in the American Civil War
• 127th Ohio Infantry ​in the American Civil War
• 128th Ohio Infantry ​in the American Civil War
• 129th Ohio Infantry ​in the American Civil War
• 130th Ohio Infantry ​in the American Civil War
• 131st Ohio Infantry ​in the American Civil War
• 132nd Ohio Infantry ​in the American Civil War
• 133rd Ohio Infantry ​in the American Civil War
• 134th Ohio Infantry ​in the American Civil War
• 135th Ohio Infantry ​in the American Civil War
• 136th Ohio Infantry ​in the American Civil War
• 137th Ohio Infantry ​in the American Civil War
• 138th Ohio Infantry ​in the American Civil War
• 139th Ohio Infantry ​in the American Civil War
• 140th Ohio Infantry ​in the American Civil War
• 141st Ohio Infantry ​in the American Civil War
• 142nd Ohio Infantry ​in the American Civil War
• 143rd Ohio Infantry ​in the American Civil War
• 144th Ohio Infantry ​in the American Civil War
• 145th Ohio Infantry ​in the American Civil War
• 146th Ohio Infantry ​in the American Civil War
• 147th Ohio Infantry ​in the American Civil War
• 148th Ohio Infantry ​in the American Civil War
• 149th Ohio Infantry ​in the American Civil War
• 150th Ohio Infantry ​in the American Civil War
• 151st Ohio Infantry ​in the American Civil War
• 152nd Ohio Infantry ​in the American Civil War
• 153rd Ohio Infantry ​in the American Civil War
• 154th Ohio Infantry ​in the American Civil War
• 155th Ohio Infantry ​in the American Civil War
• 156th Ohio Infantry ​in the American Civil War
• 157th Ohio Infantry ​in the American Civil War
• 158th Ohio Infantry ​in the American Civil War
• 159th Ohio Infantry ​in the American Civil War
• 160th Ohio Infantry ​in the American Civil War
• 161st Ohio Infantry ​in the American Civil War
• 162nd Ohio Infantry ​in the American Civil War
• 163rd Ohio Infantry ​in the American Civil War
• 164th Ohio Infantry ​in the American Civil War
• 165th Ohio Infantry ​in the American Civil War
• 166th Ohio Infantry ​in the American Civil War
• 167th Ohio Infantry ​in the American Civil War
• 168th Ohio Infantry ​in the American Civil War
• 169th Ohio Infantry ​in the American Civil War
• 170th Ohio Infantry ​in the American Civil War
• 171st Ohio Infantry ​in the American Civil War
• 172nd Ohio Infantry ​in the American Civil War
• 173rd Ohio Infantry ​in the American Civil War
• 174th Ohio Infantry ​in the American Civil War
• 175th Ohio Infantry ​in the American Civil War
• 176th Ohio Infantry ​in the American Civil War
• 177th Ohio Infantry ​in the American Civil War
• 178th Ohio Infantry ​in the American Civil War
• 179th Ohio Infantry ​in the American Civil War
• 180th Ohio Infantry ​in the American Civil War
• 181st Ohio Infantry ​in the American Civil War
• 182nd Ohio Infantry ​in the American Civil War
• 183rd Ohio Infantry ​in the American Civil War
• 184th Ohio Infantry ​in the American Civil War
• 185th Ohio Infantry ​in the American Civil War
• 186th Ohio Infantry ​in the American Civil War
• 187th Ohio Infantry ​in the American Civil War
• 188th Ohio Infantry ​in the American Civil War
• 189th Ohio Infantry ​in the American Civil War
• 190th Ohio Infantry ​in the American Civil War
• 191st Ohio Infantry ​in the American Civil War
• 192nd Ohio Infantry ​in the American Civil War
• 193rd Ohio Infantry ​in the American Civil War
• 194th Ohio Infantry ​in the American Civil War
• 195th Ohio Infantry ​in the American Civil War
• 196th Ohio Infantry ​in the American Civil War
• 197th Ohio Infantry ​in the American Civil War
• 198th Ohio Infantry ​in the American Civil War
• 4th Ohio Battalion Infantry ​in the American Civil War
• 11th Ohio Battalion Infantry in the American Civil War
• Jones’ Independent Infantry Battalion in the American Civil War
• Wallace Guards, Infantry in the American Civil War
• Dennison Guards, Infantry in the American Civil War
• Trumbull Guards, Infantry in the American Civil War
• Departmental Corps, Infantry in the American Civil War
• 1st Ohio Independent Company Sharpshooters in the American Civil War
• 2nd Ohio Independent Company Sharpshooters in the American Civil War
• 3rd Ohio Independent Company Sharpshooters in the American Civil War
• 4th Ohio Independent Company Sharpshooters in the American Civil War
• 5th Ohio Independent Company Sharpshooters in the American Civil War
• 6th Ohio Independent Company Sharpshooters in the American Civil War
• 7th Ohio Independent Company Sharpshooters in the American Civil War
• 8th Ohio Independent Company Sharpshooters in the American Civil War
• 9th Ohio Independent Company Sharpshooters in the American Civil War
• 10th Ohio Independent Company Sharpshooters in the American Civil War
• 2nd Ohio Militia in the American Civil War
• 1st Ohio Cavalry in the American Civil War
• 2nd Ohio Cavalry in the American Civil War
• 3rd Ohio Cavalry in the American Civil War
• 4th Ohio Cavalry in the American Civil War
• 5th Ohio Cavalry in the American Civil War
• 6th Ohio Cavalry in the American Civil War
• 7th Ohio Cavalry in the American Civil War
• 8th Ohio Cavalry in the American Civil War
• 9th Ohio Cavalry in the American Civil War
• 10th Ohio Cavalry in the American Civil War
• 11th Ohio Cavalry in the American Civil War
• 12th Ohio Cavalry in the American Civil War
• 13th Ohio Cavalry in the American Civil War
• Merrill’s Horse in the American Civil War
• 2nd Ohio Battalion Cavalry in the American Civil War
• 4th Ohio Independent Cavalry Battalion in the American Civil War
• 5th Ohio Independent Cavalry Battalion in the American Civil War
• McLaughlin’s Cavalry Squadron in the American Civil War
• Harlan’s Light Cavalry in the American Civil War
• 3rd Ohio Independent Cavalry Company in the American Civil War
• 4th Ohio Independent Cavalry Company in the American Civil War
• 5th Ohio Independent Cavalry Company in the American Civil War
• 6th Ohio Independent Cavalry Company in the American Civil War
• Ohio Union Light Guard in the American Civil War
• Bard’s Independent Cavalry Company in the American Civil War
• Burdsall’s Independent Cavalry in the American Civil War
• George’s Independent Cavalry in the American Civil War
• 1st Ohio Heavy Artillery in the American Civil War
• 2nd Ohio Heavy Artillery in the American Civil War
• 1st Ohio Light Artillery – 3 Months Service in the American Civil War
• 1st Ohio Light Artillery – 3 Years Service in the American Civil War
• 1st Ohio Independent Battery Light Artillery in the American Civil War
• 2nd Ohio Independent Battery in the American Civil War
• 2nd Ohio Independent Battery Light Artillery in the American Civil War
• 3rd Ohio Independent Battery Light Artillery in the American Civil War
• 4th Ohio Independent Battery Light Artillery in the American Civil War
• 5th Ohio Independent Battery Light Artillery in the American Civil War
• 6th Ohio Independent Battery Light Artillery in the American Civil War
• 7th Ohio Independent Battery Light Artillery in the American Civil War
• 8th Ohio Independent Battery – 2 Months Service in the American Civil War
• 8th Ohio Independent Battery – 4 Months Service in the American Civil War
• 8th Ohio Independent Battery Light Artillery in the American Civil War
• 9th Ohio Independent Battery Light Artillery in the American Civil War
• 10th Ohio Independent Battery Light Artillery in the American Civil War
• 11th Ohio Independent Battery Light Artillery in the American Civil War
• 12th Ohio Independent Battery Light Artillery in the American Civil War
• 13th Ohio Independent Battery Light Artillery in the American Civil War
• 14th Ohio Independent Battery Light Artillery in the American Civil War
• 15th Ohio Independent Battery Light Artillery in the American Civil War
• 16th Ohio Independent Battery Light Artillery in the American Civil War
• 17th Ohio Independent Battery Light Artillery in the American Civil War
• 18th Ohio Independent Battery Light Artillery in the American Civil War
• 19th Ohio Independent Battery Light Artillery in the American Civil War
• 20th Ohio Independent Battery Light Artillery in the American Civil War
• 21st Ohio Independent Battery Light Artillery in the American Civil War
• 22nd Ohio Independent Battery Light Artillery in the American Civil War
• 23rd Ohio Independent Battery Light Artillery in the American Civil War
• 24th Ohio Independent Battery Light Artillery in the American Civil War
• 25th Ohio Independent Battery Light Artillery in the American Civil War
• 26th Ohio Independent Battery Light Artillery in the American Civil War
• Ironton Independent Battery in the American Civil War
• Cotter’s Independent Battery in the American Civil War
• Paulsen’s Independent Battery in the American Civil War
• Williams’ Independent Battery in the American Civil War
• 1st Ohio Veteran Engineers in the American Civil War

Battles & Campaigns

• Morgan’s Raid (OH, 1863)
• Western Virginia Campaign (1861)

Notable Commanders from Ohio

• Ulysses S. Grant – Rose from Ohio to command all Union armies.
• William Tecumseh Sherman – Led major campaigns in the Western and Southern theaters.
• Philip H. Sheridan – Noted cavalry commander, later led the Army of the Shenandoah.
• Jacob D. Cox – Commanded divisions and corps in the Western Theater.

Official Records References

• Official Records, Series I, Volumes II, XVI, XX, and others: reports involving Ohio troops.
• Adjutant General’s Report of Ohio.
• Dyer’s “Compendium of the War of the Rebellion.”