Gules, a rock Argent within a garland of oak leaves and acorns Proper.
On a wreath of the colors Argent and Gules, a demi-eagle displayed Sable, armed and langued Gules, collared Or, charged on the breast with a fleur-de-lis Argent, debruised in base by an escallop Gold.
FORTUNA INFORTUNA FORTI UNA (Fortune or Misfortune is all the same to the Man of Stout Heart).
The shield is red for Engineers. The rock, taken from the arms of St. Mihiel, and the oak leaves, emblematic of the Meuse-Argonne, indicate the service of the organization in World War I.
The demi-eagle is representative of the Battalion's service during World War I. The gold collar, or ring, suggesting the Nibelungen Ring of legend, specifically alludes to service in the Rhineland during World War II. The fleur-de-lis emphasizes the unit's service in France in both World Wars. The escallop symbolizes the decorations awarded the Battalion for action in Normandy.
The coat of arms was originally approved for the 37th Engineers (General Service) on 4 March 1935. It was amended to correct the spelling of the motto on 3 May 1935. It was redesignated for the 37th Engineer Regiment (Combat) on 27 September 1941. On 30 August 1943, the insignia was redesignated for the 37th Engineer Combat Battalion. The insignia was redesignated for the 37th Engineer Battalion (Combat) on 18 May 1955. The coat of arms was redesignated for the 37th Engineer Battalion and amended to include a crest on 13 May 1987.