Gules, on a bend Or a fusil of the field.
From a wreath Or and Gules, issuant from base a demi-trident with prongs in the form of a fleur-de-lis of the first, looped about its shaft with ends upturned and forked a ribbon of the second edged Vert.
DUTY NOT REWARD.
The Regiment was organized in 1917 and served in France in the 5th Division, principally in Lorraine. The shield is red for Artillery, with a gold bend from the arms of Lorraine and the red diamond of the 5th Division.
The golden trident simulating a fleur-de-lis refers to the units participation in the D-Day landing at Normandy which was known as Operation Trident. The ribbon is in the colors of the Belgian Fourragere for which the unit was twice cited (for action in Belgium and the Ardennes).
The coat of arms was originally approved for the 20th Field Artillery Regiment on 29 April 1921. It was redesignated for the 20th Field Artillery Battalion on 20 August 1942. It was redesignated for the 20th Artillery Regiment on 13 June 1958. The insignia was amended to add a crest on 13 April 1965. It was redesignated for the 20th Field Artillery Regiment on 1 September 1971.