Shield
Azure, a bend Or, on a chief Argent a quatrefoil of the first charged with a fleur-de-lis of the second.
Crest
That for regiments and separate battalions of the Army Reserve: From a wreath Argent and Azure, the Lexington Minute Man Proper. The statue of the Minute Man, Captain John Parker (H.H. Kitson, sculptor), stands on the common in Lexington, Massachusetts.
Motto
LIBERTY AND RIGHTS.
Shield
The shield is blue for Infantry, the original designation of the unit. The gold bend is taken from the arms of Alsace; the 349th Infantry served as a unit of the 88th Division during World War I, where the division wore the blue quatrefoil. The fleur-de-lis indicates the regiment's baptism of fire in France. The chief is made white, so as not to have a blue quatrefoil on a blue field.
Crest
The crest is that of the U.S. Army Reserve.
The coat of arms was originally authorized for the 349th Infantry Regiment on 9 November 1925. It was redesignated for the 349th Regiment on 6 April 1999.