Shield
Azure, Satanta's arrow in fess Argent between in chief a castle Or in base a kampilan and bolo in saltire of the second hilted of the third. On a chief embattled of the second a cross Gules.
Crest
On a wreath of the colors a fusil Gules bearing a cross pate Argent charged with an acorn of the first.
Motto
SEMPER FIDELIS (Always Faithful).
The shield is blue for infantry. Service in the Spanish War is shown by the castle and in the Indian Wars by Satanta's "arrow." The most important Indian campaign of this regiment was against the Kiowas, Comanches and Cheyenne in 1874. Satanta was a noted Kiowa chief who died just previous to this campaign. His "arrow" was really a spear with feathers on the end and a handle. The kampilan and bolo represent engagements against the Moros of Mindanao and the Filipinos of the Visayas. Service in the World War is shown by the chief bearing the cross of the ancient Lords of Dun to commemorate the crossing of the Meuse at Dun. The embattled partition represents the siege of Chattanooga in 1863. The crest consists of the Civil War badges of the 1st Division, 14th Army Corps and 2d Division, 5th Army Corps, and the World War 5th Division shoulder sleeve insignia.
The coat of arms was approved on 12 Oct 1920.