Shield
Per bend Gules and Tenn a band Or, on a sinister canton Argent a mullet of the like fimbriated of the first within a fishhook fesswise ring to dexter, barb to base of the first (for the 5th Field Artillery), a broken howitzer Proper.
Crest
On a wreath of the colors Or and Gules, a dragon rampant of the last.
Motto
WITHOUT FEAR, FAVOR OR THE HOPE OF REWARD.
Shield
Scarlet and yellow are the colors used for Field Artillery. The canton with mullet and fishhook refers to the 5th Field Artillery from which the 13th Field Artillery was organized in June 1917. The bend is taken from the arms of Lorraine, where the heaviest fighting of the regiment occurred. The broken howitzer alludes to the Vesle River, where heavy losses were sustained and the two pieces put out of action by direct hits.
Crest
The dragon commemorates a march from Esnes to Malincourt during the night of September 26-27, 1918, over very difficult terrain and against resistance. The dragon, a mythical animal, typifies the inferno prevailing that night.
The coat of arms was originally approved for the 13th Field Artillery Regiment on 29 September 1920. It was amended to revise the blazon of the shield on 1 February 1922. The insignia was redesignated for the 13th Field Artillery Battalion on 7 May 1942. It was redesignated for the 13th Artillery Regiment on 16 October 1958. The insignia was redesignated for the 13th Field Artillery Regiment on 1 September 1971. The coat of arms was amended to correct the motto on 2 February 1978.