73rd Illinois Volunteer Infantry Regiment

73rd Regiment Illinois Volunteer Infantry
Illinois state flag
Active	August 21, 1862, to June 10, 1865
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	Battle of Perryville Battle of Stone's River Siege of Chattanooga Battle of Kennesaw Mountain Battle of Jonesboro Battle of Franklin Battle of Nashville

The 73rd Regiment Illinois Volunteer Infantry, known as the "Persimmon Regiment" or the "Preacher's Regiment" was an infantry regiment that served in the Union Army during the American Civil War.

73rd Regiment Illinois was organized at Camp Butler, Illinois and mustered into Federal service on August 21, 1862.

The regiment was discharged from service on June 10, 1865.

The regiment suffered 5 officers and 109 enlisted men who were killed in action or mortally wounded and 167 enlisted men who died of disease, for a total of 281 fatalities.