The 6th Illinois Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War.
The 94th Regiment Illinois Volunteer Infantry, nicknamed the "McLean Regiment," was an infantry regiment that served in the Union Army during the American Civil War.
The 30th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 31st Regiment Illinois Volunteer Infantry, nicknamed the "Dirty-First," was an infantry regiment that served in the Union Army during the American Civil War.
The 9th Illinois Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.
The 10th Illinois Infantry Regiment was an infantry regiment that served in the Union Army between April 20, 1861, and July 11, 1865, during the American Civil War.
The 32nd Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 14th Regiment, Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War. It was one of the ten infantry regiments authorized on May 2, 1861, by the Illinois Ten Regiment Act.
The 35th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 26th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 38th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 130th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 43rd Regiment Illinois Volunteer Infantry, known as the "Koerner Regiment" after Gustav Körner, was an infantry regiment that served in the Union Army during the American Civil War.
The 46th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 49th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 51st Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 52nd Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 24th Regiment, Indiana Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 48th Regiment Illinois Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.
The 65th Regiment Illinois Volunteer Infantry, nicknamed the "Second Scotch Regiment" was an infantry regiment that served in the Union Army during the American Civil War. The regiment mustered into service in May 1862 and was captured at the Battle of Harper's Ferry. After being paroled and exchanged, the regiment was sent to Kentucky and assigned to the XXIII Corps. The regiment participated in the Knoxville campaign, the Atlanta campaign, the Franklin–Nashville campaign, and the Carolinas campaign. The soldiers were mustered out in July 1865.
United States 
