Azure, crusilly fitche Or, on a canton of the last masoned Sable a cross patee Argent fimbriated of the first.
On a wreath of the colors, Or and Azure, a cactus (prickly pear) Vert fructed Gules.
TOUJOURS EN AVANT (Always Forward).
The regiment was originally organized at El Paso, Texas, by transfer of personnel from the 7th, 20th, and 23d Infantry. These units are symized on the canton; the masoned wall is from the arms of the 7th Infantry and the white Maltese cross is from the arms of the 20th and 23d Infantry. The blue background with gold cross crosslets sharpened at the foot reflects World War I service. The 34th Infantry served in that part of the province of Lorraine which was anciently the Barony of Commercy. The arms of those Barons were blue, scattered with gold cross crosslets sharpened at the foot.
The cactus commemorates Texas, the birthplace of the regiment.
The coat of arms was originally approved on 20 Jun 1921. It was superseded on 31 Jul 1922. The coat of arms was amended to revise the blazon of the crest on 29 Jul 1992.