The 12th Kentucky Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. Service Company A of the 12th Kentucky Infantry Regiment was organized at Camp Dick Robinson on September 26, 1861, while the remaining nine companies were organized near Waitsboro, Kentucky, from December 1861 through January 1862 and mustered at Clio, Kentucky, in January 1862 for a three-year enlistment. The regiment was attached to Thomas' Command, Camp Dick Robinson, Kentucky, to November 1861. 1st Brigade, Army of the Ohio, to December 1861. 1st Brigade, 1st Division, Army of the Ohio, to September 1862. 1st Brigade, 1st Division, III Corps, Army of the Ohio, to November 1862. 1st Brigade, 3rd Division, Center, XIV Corps, Army of the Cumberland, to December 1862. District of Western Kentucky, Department of the Ohio, to June 1863. 1st Brigade, 2nd Division, XXIII Corps, Army of the Ohio, to August 1863. 1st Brigade, 3rd Division, XXIII Corps, to June 1864. 3rd Brigade, 3rd Division, XXIII Corps, to August 1864. 1st Brigade, 3rd Division, XXIII Corps, Army of the Ohio, to February 1865, and Department of North Carolina to July 1865. The 12th Kentucky Infantry mustered out of service on July 11, 1865. Detailed service Actions at Albany and Travisville, Ky., September 29, 1861 (Company A). Operations in Wayne and Clinton Counties and at Mill Springs, Ky., November 1861. At Camp Hoskins until December. Operations about Mill Springs December 1–13. Action with Zollicoffer December 2. Moved to Somerset and duty there until January 1862. Battle of Mill Springs January 19–20. Regiment mustered in at Clio, Ky., January 1862. Moved to Louisville, Ky.; thence to Nashville, Tenn., February 11-March 2. March to Savannah, Tenn., March 20-April 8. Advance on and Siege of Corinth, Miss., April 29-May 30. Pursuit to Booneville June 1–6. Buell's Campaign in northern Alabama and middle Tennessee June to August. March to Nashville, Tenn.; thence to Louisville, Ky., in pursuit of Bragg, August 20-September 25. Pursuit of Bragg into Kentucky October 1–15. Battle of Perryville, Ky., October 8 (reserve). March to Lebanon, Ky., and duty there until April 1863. Operations against Morgan December 22, 1862, to January 2, 1863. Moved to Bowling Green, Ky., April 10. Duty there and at Russellville until August. Moved to Camp Nelson and Danville and Join Gen. Burnside. Burnside's march over Cumberland Mountains and Campaign in eastern Tennessee August 16-October 17. Occupation of