27th Indiana Infantry Regiment
Flag of the United States, 1863-1865
Active	September 12, 1861, to November 4, 1864
Country	United States
Allegiance	Union
Branch	Infantry
Engagements	First Battle of Winchester Battle of Front Royal Battle of Cedar Mountain Battle of Antietam Battle of Chancellorsville Battle of Gettysburg New York Draft Riots Battle of Resaca Battle of Kennesaw Mountain Siege of Atlanta

The 27th Indiana Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.

Service

• The 27th Indiana Volunteer Infantry was organized at Indianapolis, Indiana, on September 12, 1861.
• First Battle of Winchester
• Battle of Front Royal
• Battle of Cedar Mountain
• Battle of Antietam
• Battle of Chancellorsville
• Battle of Gettysburg
• New York Draft Riots
• Battle of Resaca
• Battle of Kennesaw Mountain
• Siege of Atlanta
• The regiment mustered out of service on November 4, 1864. Recruits and veterans were transferred to the 70th Indiana Infantry.

Roster List for all Indiana Regiments

Total strength and casualties

The regiment lost 10 officers and 159 enlisted men killed in action or died of wounds and 2 officers and 131 enlisted men who died of disease, for a total of 302 fatalities.^[1]

Commanders

• Colonel Silas Colgrove
• Lieutenant Colonel Archibald T. Harrison - older brother of Benjamin Harrison, future President of the United States
• Lieutenant Colonel Abisha L. Morrison
• Lieutenant Colonel John Roush Fesler
• Major John Mehringer
• Major William S. Johnson
• Major George W. Burge
• Major Theodore F. Colgrove^[2]